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Mary Berry Mars Bar Cake Recipe

Mary Berry Mars Bar Cake recipe

Mary Berry Mars Bar cake is a classic British fridge cake where chopped Mars bars are melted with butter to create a sticky caramel-chocolate base. Crushed biscuits are folded in for texture, and the mixture is set in the fridge before being topped with melted chocolate. The result is a sliceable cake that is chewy, crunchy, and chocolatey all at once.

Ingredients

  • Mars bars – 6 standard bars (about 230 g), chopped

  • Unsalted butter – 100 g

  • Digestive biscuits – 200 g, roughly crushed

  • Milk chocolate – 200 g, broken into pieces

Instructions

  • Prepare the tin – Line the base and sides of the tin with baking parchment.

  • Melt Mars bars and butter – Place the chopped Mars bars and butter in a saucepan over low heat, stirring gently until completely melted and smooth.

  • Crush the biscuits – Break the digestives into chunky crumbs, keeping some texture.

  • Combine the mixture – Remove the pan from the heat and stir in the crushed biscuits until evenly coated.

  • Press into the tin – Spoon the mixture into the prepared tin and press down firmly with the back of a spoon.

  • Melt the chocolate topping – Melt the milk chocolate gently over low heat or in short microwave bursts.

  • Add the topping – Pour the melted chocolate over the biscuit base and spread evenly.

  • Chill to set – Refrigerate for at least 2 hours, or until firm.

  • Slice and serve – Cut into squares using a warm knife for neat edges.