M&M Millionaire Shortbread

This M&M Millionaire Shortbread has a delicious M&M Shortbread, homemade caramel and is topped with Milk Chocolate, M&M Spread and of course more M&Ms.

This is the first Millionaire Shortbread recipe on my blog, so I thought it was about time I gave it a little update and update the photos.

I haven’t changed too much about the recipe the only main difference is that I have added M&Ms to the shortbread, similar to my Mini Egg Millionaire Shortbread. I have also updated the recipe for the caramel as I just find this recipe is so much easier to follow and makes a more delicious caramel.

If you haven’t guessed already, I am OBSESSED with Millionaire Shortbread at the moment. I have a few different recipes on my blog from my Jammie Dodger Millionaire Shortbread to my Millionaire Blondies.

The combination of shortbread, homemade caramel and a chocolate topping is just absolutely heavenly, and it is so much easier to make than you might think.

There are a few different options for the topping which I will explain in more detail in the alternatives section below. I used a combination of milk chocolate and M&M Spread, but you could use all milk chocolate, or you could switch it up and use dark or milk chocolate. I wouldn’t recommend using just the M&M spread as it won’t set

If you haven’t come across M&M spread before, where have you been?!! You can find it in most supermarkets, and it is normally in the same aisle as the jams and spreads like Biscoff and Nutella.

Shortbread

Making shortbread is so easy and only includes three main ingredients. To start with mix together the flour, sugar and butter until if forms a breadcrumb/sandy consistency. Next, add in the M&MS and mix again until they are evenly distributed. To mix the shortbread I used the paddle attachment on my stand mixer, but you could also use a hand mixer or a wooden spoon.

Once the M&Ms are evenly distributed the mixture should still be quite crumbly. Using your hands bring the shortbread together with your hands.

Pop the shortbread into the bottom of your lined cake tin and press it down using your hands or the back of a spoon. If you find the shortbread is sticking to your hands or the spoon you can coat them in flour, and it should stop this happening.

Once you have pressed the shortbread into the bottom of the tin bake in the oven until it is golden brown in colour and looks dry.

Caramel

Once your shortbread is ready you can make the caramel. I normally make the caramel while the shortbread is cooling the shortbread doesn’t need to be completely cool.

Now I know I say this on literally every Millionaire Shortbread but please make your own caramel. I promise it isn’t nearly as complicated as you think.

Related Posts

Jammie Dodger Millionaire Shortbread

M&M Cupcakes

M&M Piñata Cake

In a saucepan heat up all the ingredients stirring constantly until the butter has melted and the sugar has dissolved. You will know the sugar has dissolved because when you stir the mixture it won’t feel grainy. You need to do this step on a low heat and stir the mixture continuously so that it doesn’t catch.

Once your butter has melted and sugar dissolved turn the heat up to medium and stir continuously. The caramel will start boiling so please be careful you don’t burn yourself.

How Long do I Boil the Caramel For?

So, unfortunately, there isn’t a particular time or temperature you want to get to. You will notice the mixture starts to become a lot thicker and will turn a lovely amber/caramelly colour.

Keep stirring because you don’t want it to catch and burn. I normally boil my caramel for around 4 minutes but again this totally depends it could be up to 8 minutes it just depends.

Once your caramel is ready pour it over the shortbread case and spread using a spatula. Pop it into the fridge to set.

Top Tips for Making Caramel

You need to stir the mixture continuously until it is ready. Please don’t put it on and leave it.

If you find you get little dark flecks in your caramel these are bits that have caught and burned slightly. They will still be fine to eat, or you could just pass your caramel through a seize before pouring it over your shortbread.

You need to use Unsalted Butter for the caramel rather than a baking spread like Stork. It just helps the caramel set better.

Depending on where you live in the world Golden Syrup might not be as readily available. An alternative would be Corn Syrup, but I would highly recommend trying your best to get Golden Syrup.

Chocolate M&M Topping

Once your caramel has cooled and set you can make the chocolate topping. To make this I melted my milk chocolate in the microwave in 20-second bursts until it was completely melted and smooth. I then added the M&M spread and mixed it until it was fully incorporated and smooth.

Pour the chocolate topping over the top of the caramel and smooth using a spatula or palette knife. Decorate with your M&Ms and put it back into the fridge for the chocolate to set.

Because of the M&M Spread your chocolate topping won’t be set as firm as it would if it was just milk chocolate, it will still hold its shape when cut, it will just be slightly softer.

Alternatives

You don’t need to add the M&Ms into the shortbread if you don’t want to. You also don’t need to use the M&M spread if you can’t find it. Just use 400g of Milk Chocolate.

Please don’t use shop-bought caramel.

You could also use dark or white chocolate for the topping. If you are using white chocolate, I wouldn’t mix it with the M&M spread.

Equipment

Square Cake Tin

Spatula

Mixing Bowl

Scales

Saucepan

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M&M Millionaire Shortbread

Sarah Mark
This M&M Millionaire Shortbread has a delicious M&M Shortbread, homemade caramel and is topped with Milk Chocolate, M&M Spread and of course more M&Ms.
Prep Time 30 mins
Cook Time 40 mins
Total Time 1 hr 10 mins
Servings 16 Servings

Ingredients
  

For the Shortbread

  • 325 g Plain Flour
  • 225 g Caster Sugar
  • 150 g Unsalted Butter
  • 100 g M&Ms

For the Caramel

  • 397 g Condensed Milk
  • 75 g Golden Syrup
  • 50 g Caster Sugar
  • 225 g Unsalted Butter

For the Chocolate Topping

  • 200 g Milk Chocolate
  • 200 g M&M Chocolate Spread
  • 125 g M&Ms

Instructions
 

To Make the Shortbread

  • Line a 9” square cake tin with non-stick baking paper. Preheat the oven to 180C (160C Fan).
  • Add the flour, sugar and butter, to a bowl and mix until it forms a soft dough.
  • Add in the M&Ms and mix again until they are evenly distributed.
  • Press the dough into the bottom of your lined tin until it is flat and even.
  • Bake for 20-25 minutes or until golden.
  • Remove from the oven and leave to one side.

To Make the Caramel

  • To make the caramel put the condensed milk, sugar, golden syrup and butter into a large pan over a low heat.
  • Stir continually until the sugar has dissolve and the butter has melted. Turn the heat up to medium and boil until the caramel has thickened and darkened in colour. Stir continuously to ensure the caramel doesn’t burn.
  • Once the caramel is nice and thick it should take between 4-6 minutes pour it over the top of your shortbread biscuit and leave to cool.
  • Put it in the fridge until the caramel had cooled and set.

To Make the Chocolate Topping

  • Add the chocolate to a heatproof bowl and melt in 20 second bursts stirring in between until it is smooth and completely melted.
  • Add the M&M Chocolate Spread to the melted chocolate and mix until it is completley incorporated.
  • Pour the chocolate mixture onto the top of the caramel and smooth. Finish by decorating with M&Ms.

If you do have any questions about this M&M Millionaire Shortbread or any other recipes on my blog you can contact me either by sending me a DM on social media or an email. You can find all my details on the right-hand side of this page.

78 Comments

  • ellieslondon

    2 April 2020 at 9:22 am

    This looks absolutely amazing!🤤 I love cooking so much so I’m really enjoying all the extra time to try new things. I definitely want to give this one a go – but after cookies, chocolate cake and red velvet cake – I think i need a break from the sweet stuff for a little while! 😂

    1. aspoonfulpofvanilla

      2 April 2020 at 7:26 pm

      Thank you! I hope you enjoy them if you do make them! Ah that is a lot of baking haha but if you enjoy it then why not! Maybe you could drop some off for your neighbours if you don’t want them all? Leave them on the door step, knock and then stand 2 metres away that way they can have a sugar fix too?

      1. ellieslondon

        3 April 2020 at 8:52 am

        That’s a great idea 🙂 x

  • adamjnew85

    2 April 2020 at 12:05 pm

    Showed my son this one, his eyes lit up and he said “what the…” and I had to cut him off 😂 he loves M&Ms. He’s doesn’t like caramel, so he wants me to make it for him without the caramel.

    1. aspoonfulpofvanilla

      2 April 2020 at 7:28 pm

      hahaha! I’m sure they would be good without the caramel or you could make something he likes and just follow the instructions for the M&M chocolate and decoration?

    2. Holly Shannon

      6 April 2020 at 11:13 am

      Wow that looks amazing! I didn’t know there was an M&M spread, I’ll have to look out for that!
      I hope your new job at ambulance control is going well? Xx

      Holly | http://www.gollymissholly.uk

      1. aspoonfulpofvanilla

        7 April 2020 at 11:35 am

        Yeah it is so yummy! You can find it normally in the jam and spread aisle usually near the Nutella. Thank you! I have done a couple of shifts now and I am really enjoying it! xx

  • Enn

    2 April 2020 at 3:41 pm

    YUMMMM!!!!
    Thank you for sharing this!

    1. aspoonfulpofvanilla

      2 April 2020 at 7:28 pm

      Thank you!

  • rameyspeaks

    2 April 2020 at 6:02 pm

    This looks amazing!

    1. aspoonfulpofvanilla

      2 April 2020 at 7:29 pm

      Thank you!

      1. rameyspeaks

        2 April 2020 at 7:29 pm

        You are welcome!!

  • Bella Tolentino

    3 April 2020 at 11:59 pm

    Hi Sarah! Thank you for sharing this delicious recipe! Also, congratulations on the new job. I hope to see more recipes from you 😀 What is your most favorite recipe so far in terms of baking?

    1. aspoonfulpofvanilla

      4 April 2020 at 9:01 pm

      Thank you! I have a few already scheduled for the coming weeks so definitely lots more recipes coming! I think recently it has been my No Bake Galaxy Caramel Cheesecake just because I love Galaxy Chocolate do you have any favourite recipes?

  • Karalee

    4 April 2020 at 12:47 pm

    This shortbread looks so delicious! My bf’s birthday is tomorrow & me & our daughter are going to make cupcakes since we already have everything we need.
    Also congrats on your new job!

    1. aspoonfulpofvanilla

      4 April 2020 at 9:01 pm

      Thank you! Cupcakes are the best I am sure he will love them! I hope he has a lovely birthday too!

  • Javier S.

    4 April 2020 at 6:17 pm

    This looks amazing! Will use this as a gift for future birthdays!

    1. aspoonfulpofvanilla

      4 April 2020 at 9:03 pm

      Thank you! I hope they enjoy!

  • Angie M.

    4 April 2020 at 11:13 pm

    As a chocolate lover, I approve of this cake! Looks delicious!! (: https://angiewaves.com/

    1. aspoonfulpofvanilla

      7 April 2020 at 11:18 am

      Thank you!

  • Jenna (@JennaSuth24)

    5 April 2020 at 8:22 pm

    This looks amazing. I’ve been looking for a millionaire shortbread recipe so I might just have to try this one x

    1. aspoonfulpofvanilla

      7 April 2020 at 11:32 am

      I hope you enjoy! If you would prefer just normal Millionaires Shortbread just replace the M&M spread with milk chocolate! I hope you enjoy if you do try it!

  • Al

    5 April 2020 at 8:26 pm

    You just keep knocking it out of the park with your recipes. I just want to eat everything you make! Please keep them coming!
    Al x

    1. aspoonfulpofvanilla

      7 April 2020 at 11:32 am

      Thank you! I am glad you are enjoying them!

  • Fadima Mooneira

    6 April 2020 at 12:24 pm

    Yum!!!!!!! I like this. Thank you for sharing. You have good recipes.

    1. aspoonfulpofvanilla

      7 April 2020 at 11:36 am

      Thank you! I am glad you like it!

  • lafrieda40

    6 April 2020 at 7:38 pm

    OMG!! Congratulations on the new job!! Girl, if I wasn’t prediabetic and and trying to lose weight, I would be on top of this recipe with chocolatr being my favorite. The thing for me is the baking part…I like to eat it after someone makes it..lol🤣

    1. aspoonfulpofvanilla

      7 April 2020 at 11:39 am

      Thank you! I try my hardest not to eat it after I bake it I usually take it to work or give it to the neighbours but it is so hard! Chocolate is my favourite too I think I am addicted! haha

  • travelforawhile

    7 April 2020 at 9:02 am

    It looks absolutely delicious! My baking skills are somewhat limited but I’l love to try this one 🙂

    1. aspoonfulpofvanilla

      7 April 2020 at 11:39 am

      You should definitely give it a try! I hope you enjoy if you do!

  • Shari J

    7 April 2020 at 2:12 pm

    WOW! I cannot get over how delicious all your desserts look on your blog! WOW! M &M and chocolate are my weakness I have to try this recipe. Wonderful post!

    1. aspoonfulpofvanilla

      8 April 2020 at 11:22 am

      Thank you! I hope you enjoy it!

  • itselliekblog

    7 April 2020 at 3:39 pm

    A couple of squares of this with a cup of tea would be the perfect end to the day, looks so tasty!
    Ellie X // elliekblog.blogspot.co.uk

    1. aspoonfulpofvanilla

      8 April 2020 at 11:22 am

      Ooh it would be the perfect end to the day!

  • markstraveljournal

    10 April 2020 at 2:47 pm

    A must try/bake for sure. Looks brilliant! Best of luck in your new job too,

    1. aspoonfulpofvanilla

      10 April 2020 at 11:19 pm

      Thank you! I have been in my new job for a week now and I am absolutely loving it! I hope you have a lovely weekend!

  • mehsi

    10 April 2020 at 5:12 pm

    This looks absolutely delicious. Chocolate + shortbread + caramel. Yum! I will have to modify the recipe a bit. Would it work with normal chocolate spread? I cannot eat nuts, so in general M&Ms are out for me (and I can’t even eat them as my body just associates M&M’s with nuts :P). I can change the m&ms to smarties so that works, but don’t know if you can just change the spread.

    1. aspoonfulpofvanilla

      10 April 2020 at 11:19 pm

      Yeah of course just use 400g of melted chocolate instead of 200g spread and 200g chocolate. Smarties would work so well with this recipe too it would be super cute!

  • Kayleigh Zara

    14 April 2020 at 9:14 am

    This looks incredible! I’m such a big fan of m&ms that this would be soo good if I made it x

    1. aspoonfulpofvanilla

      14 April 2020 at 10:03 pm

      Thank you! I hope you enjoy if you do make it!

  • piperhill

    14 April 2020 at 9:27 am

    Congratulations on your new job! I’ve been looking for some new things to bake as baking the same old cookies over and over again, although delicious, does get boring after a while. Will be making these next time I go out to do a shop. Do you use Instagram a lot to share baking?

    1. aspoonfulpofvanilla

      14 April 2020 at 10:03 pm

      Thank you! Cookies are deliciuos but I know what you mean. I do it is instagram.com/aspnofvanilla I hope you enjoy when you make it!

  • Emma McKnight

    14 April 2020 at 12:01 pm

    This looks absolutely delicious! I love any sort of desert with M&Ms so I might have to give this recipe a try!

    1. aspoonfulpofvanilla

      14 April 2020 at 10:04 pm

      Thank you! I hope you enjoy!

  • Kyra | lovekyra.co.uk

    14 April 2020 at 12:10 pm

    This looks so delicious! I’m saving this recipe for another day!
    -Kyra xx

  • Eddie

    14 April 2020 at 12:30 pm

    This looks great, looks simple too to tackle with the kids, apart from the caramel, I’ve never been successful making my own. Congratulations on the new job, hope it goes well for you.

    1. aspoonfulpofvanilla

      14 April 2020 at 10:04 pm

      Thank you! It would be great to tackle with the kids just be careful with the caramel as it gets super hot!

  • Laci

    14 April 2020 at 3:28 pm

    This looks amazing! Thank you for sharing!

    1. aspoonfulpofvanilla

      14 April 2020 at 10:04 pm

      Thank you!

  • Kelsey Rodriguez

    14 April 2020 at 4:29 pm

    I’ve been baking like crazy since the quarantine began and this might just be up next! Thanks for sharing.

    1. aspoonfulpofvanilla

      14 April 2020 at 10:05 pm

      I have been going crazy too my house is filled with cakes and bakes!

  • Matt

    14 April 2020 at 5:32 pm

    That looks soooo good!! If there is one thing I learned about Scots in my time there, it’s that you know how to do amazing shortbread. I think I might have to give this one a whirl!

    1. aspoonfulpofvanilla

      14 April 2020 at 10:05 pm

      We do love our shortbread, I also have a recipe coming soon which includes Tablet. I hope you enjoy if you do make it!

      1. Matt

        15 April 2020 at 2:07 am

        Ooooh tablet, yes please! Question for you. I tried a couple of different brands of tablet while over there. One was so sweet it was like eating dehydrated sweetened condensed milk with sugar added. The other was more like a firmer, grainier fudge. Still sweet but not as much and less sweetened condensed milk flavour (thank you Orkney Fudge Company). Which way is it meant to be?

        1. aspoonfulpofvanilla

          15 April 2020 at 9:29 pm

          I would have said the fudge was like eating dehydrated sweetened condensed milk and the tablet was the firmer and grainer. If I was making them personally my fudge is a lot softer and my tablet is a lot firmer and sweeter.

          1. Matt

            16 April 2020 at 1:55 am

            That’s what I thought should probably be the case (tablet former than fudge). I only tried one fudge while I was in Scotland, is was from the Orkney Fudge Company, and it was not much different to their tablet I thought, except for being whiskey flavoured. Hence my confusion 🙂 thanks for explaining how they should be!

      2. Matt

        15 April 2020 at 2:10 am

        I think I will give it a whirl. My wife’s birthday is coming up and she loves m&m’s. I’ll have to adapt it to make it GF though. Should be some straightforward substitutions so hopefully it comes out about right 🙂

        1. aspoonfulpofvanilla

          15 April 2020 at 9:31 pm

          Yeah of course, it should be as easy as switching the ingredients for gluten free alternatives! I hope you and your wife enjoy it!

  • justlivejoy

    14 April 2020 at 7:39 pm

    Yum!! These look so good! Thanks for the recipe!
    https://justlivejoy.com/quick-and-easy-burger-bombs-offer-comfort/

    1. aspoonfulpofvanilla

      14 April 2020 at 10:05 pm

      Thank you!

  • Bossylibrarian

    17 April 2020 at 6:09 pm

    This is advanced for my pantry right now, but someday I will make this delicious dessert! Thanks for the recipe!

    1. aspoonfulpofvanilla

      18 April 2020 at 12:02 am

      I hope you enjoy if you do make it! If you have any questions let me know!

  • lindapurcell724gmailcom

    19 April 2020 at 8:51 pm

    Wow, that looks especially yummy. I’m going to have to make that for my grandson.

    1. aspoonfulpofvanilla

      20 April 2020 at 9:07 pm

      Thank you! I hope you and your grandson enjoy!

  • Lu Reviews Books

    25 April 2020 at 7:14 pm

    Oh my… I guess I will have to try this one too. Thanks for sharing 😋😋

    1. aspoonfulpofvanilla

      30 April 2020 at 4:04 pm

      Haha yessss do it!

  • Jaclyn Burness

    2 May 2020 at 6:02 am

    These look amazing! My six year old son loves to bake with me and I think he’d enjoy giving these a go too.

    1. aspoonfulpofvanilla

      2 May 2020 at 10:07 pm

      I am sure you will have so much fun making these! I hope you enjoy them too!

  • Jan

    3 May 2020 at 11:58 pm

    Caramel shortbread is one of my favourite treats. I love that this one has M&M’s on. My kids would have so much fun decorating with the M&M’s.

    1. aspoonfulpofvanilla

      4 May 2020 at 1:09 pm

      It would be the perfect bake to make with kids and so much fun, I have to admit the decorating was my favourite bit of this bake too!

  • Amber Keep

    4 May 2020 at 5:58 am

    This looks amazing!!

    1. aspoonfulpofvanilla

      4 May 2020 at 1:09 pm

      Thank you!

  • Shyla

    5 October 2020 at 12:39 am

    This recipe looks so very delicious. I absolutely love shortbread and this is an amazing looking recipe. I am so trying this! As a stay at home mom I am always looking to try new things.

    1. aspoonfulofvanilla

      17 October 2020 at 6:13 pm

      Thank you! This recipe would be perfect to make with your children, I am sure they will enjoy eating it as much as they do making it

  • Tiffany McCullough – Metaphysical Mama

    11 June 2021 at 5:08 pm

    This looks incredible! My son has just recently discovered his love of M&M’s, so I will definitely have to make this for him. Thanks for sharing!!

    1. aspoonfulofvanilla

      22 June 2021 at 6:50 pm

      Thank you! I hope you enjoy them! If you do make them please tag me or use #aspoonofvanilla so I can see all the deliciousness.

  • Fiona

    12 June 2021 at 2:34 pm

    Omg it looks so yummy! You’re making me crave this huhu. Thanks for sharing the recipe <3

    1. aspoonfulofvanilla

      22 June 2021 at 7:28 pm

      Thank you!

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