Millionaire's Sponge Cake

  • Total Time

    1h 0m
    • Prep Time

    • Bake Time

  • Makes


  • Skill Level

  • 1 Review

    5 star rating


This amazing recipe for Millionaire's Sponge Cake is sure to impress. The gorgeous combination of toffee caramel and chocolate makes a winning combination. Three tiers of moreish sponge, chocolate buttercream and toffee sauce means this is a great recipe for a celebration. 


  1. Pre-heat the oven to 180°C/160°C Fan and line three 20cm/8" round cake tins with baking parchment. 

    Top Tip: How to Grease & Line a Circular Cake Tin
  2. Beat together the butter and light brown sugar until light and fluffy. Add in the eggs, flour and baking powder and beat until combined. Divide the mixture between the three cake tins and bake for 25-30minutes. The cakes should be lightly golden in colour and a skewer should come out clean. 

    • 400g Unsalted Butter
    • 400g Light Brown Soft Sugar (We use Billington's)
    • 400g Self-Raising White Flour (We use Allinson)
    • 8 Medium Free Range Eggs
    • 2 tsp Baking Powder
  3. Leave the cakes to cool in their tins for 5-10 minutes and then remove and leave to cool fully on a wire rack. While the cakes are cooling you can start on the buttercream. Beat the butter for a couple of minutes to soften it and then gradually add in the icing sugar until it is fully combined and the texture is smooth.

    • 175g Unsalted Butter (Softened)
    • 325g Icing Sugar (We use Silver Spoon)
    • 40g Cocoa Powder
  4. Add the Cocoa Powder to the buttercream and continue mixing. Make sure you get all of the cocoa powder incorporated. If the buttercream feels too stiff, add a tsp of boiling water to loosen it up.

  5. Assemble the cake - on the first layer of the cake, pipe the chocolate buttercream using a a star nozzle and then drizzle some of the toffee sauce on top. Repeat again with the second layer. 

    If you want to make your own sauce - why not try our Salted Caramel Sauce Recipe

    On the top layer, pipe on the rest of the chocolate buttercream and drizzle over some more toffee sauce. Add some Millionaires Shortbread Bites and sprinkle on some crushed Lotus biscuits. 


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  1. 5 star rating

    Easy to follow, looks impressive and went down a treat!

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