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Salted Caramel Apple Crumble Cake

This Salted Caramel Apple Crumble Cake has a light brown sugar sponge crammed full of apples, topped with a salted caramel buttercream, salted caramel drizzle, and a delicious homemade crumble.
Prep Time1 hour 10 minutes
Cook Time1 hour
Decorating Time1 hour
Total Time3 hours 10 minutes
Course: Dessert
Cuisine: Cake
Keyword: Apple, Apple Crumble, apple crumble cake, crumble
Servings: 12 Servings
Author: Sarah Mark

Ingredients

To Make the Crumble

  • 150 g Plain Flour
  • 75 g Unsalted Butter
  • 75 g Demerara Sugar

For the Salted Caramel

  • 250 ml Double Cream
  • 50 g Unsalted Butter
  • 350 g White Granulated Sugar
  • 100 ml Cold Water
  • 1/2 tsp Sea Salt

For the Brown Sugar Cake

  • 200 g Apples (peeled and chopped weight)
  • 1 tbsp Ground Cinnamon
  • 40 g Light Brown Sugar
  • 325 g Unsalted Butter or Stork
  • 325 g Light Brown Sugar
  • 325 g Self-Raising Flour
  • 6 Large Eggs
  • 1 tsp Vanilla Extract 1
  • 1 tsp Baking Powder

For the Buttercream

  • 200 g Unsalted Butter
  • 400 g Icing Sugar
  • 50 g Salted Caramel Sauce (optional)
  • 3-4 tbsp Whole Milk or Boiling Water (optional)

Instructions

To Make the Crumble

  • Preheat the oven to 180C (160C Fan) and line a baking tray with baking parchment. Leave to one side.
  • In a large bowl rub together the flour, butter and sugar until it resembles breadcrumbs.
  • Sprinkle the mixture onto the baking tray and bake in the oven for 15-20 minutes or until golden brown in colour.
  • Remove from the oven and leave to one side to cool.

To Make the Salted Caramel Sauce

  • Measure out the cream in a jug and leave to one side.
  • Measure out the butter and cut it into small cubes and leave to one side.
  • In a saucepan add the sugar and water and pop onto a low/medium heat.
  • Once the sugar has dissolved stop stirring and leave the mixture to come to the boil.
  • Once the mixture is boiling, leave it until it turns a lovely amber colour, and then remove it from the heat. This can take up to 10 minutes.
  • Whisk the caramel and add in the double cream. This will bubble and spit so please be careful. Keep whisking as quickly as you can until the bubbling has stopped.
  • Add in the butter and whisk again until it is completely melted.
  • Sprinkle in the sea salt and mix through.
  • Careful pour the mixture into a clean jar, pop the lid on and place it into the fridge until it is completely cool.

To Make the Cake

  • Preheat the oven to 180C (160C Fan). Line two 8” cake tins with greaseproof paper and leave it to one side.
  • Peel and core the apples and place them into a large bowl. Add in the 40g of light brown sugar and cinnamon and mix until the apples are completely coated. Leave to one side.
  • In a large bowl, whisk together the sugar and butter until light and fluffy.
  • Add in the flour, eggs, vanilla extract, and baking powder. Whisk until all the ingredients are combined.
  • Fold through the apples.
  • Pour the mixture into the individual cake tins and bake in the oven for 35-40 minutes. You will know they are ready when they are springy to touch.
  • Leave them to cool in the cake tin for 15-20 minutes and then remove and put them on a wire rack to cool fully.

To Make the Buttercream

  • Beat the butter in your bowl for 5-10 minutes until pale in colour.
  • Add in the icing sugar and caramel sauce (optional) and mix until completely combined.
  • If the buttercream is too thick, add a tablespoon of milk and mix again. Repeat until the buttercream is the desired consistency.
  • Pop the buttercream into a piping bag with your piping tip and leave to one side.

Putting it All Together

  • Place your first cake onto your serving plate and pipe on the buttercream.
  • Drizzle over the salted caramel sauce. If the sauce is too thick to drizzle put it into the microwave for 10-20 seconds to soften.
  • Place your second cake on top and pipe the buttercream on.
  • Drizzle over the Salted Caramel Sauce.
  • Sprinkle over some crumble and enjoy!

Notes