Ingredients

The following ingredients have 12 Servings
  • 200g dark chocolate
  • 200g butter, cut into small pieces
  • 1 tbsp mixed with 120ml water instant coffee
  • 3 medium eggs
  • 2 tbsp  buttermilk
  • 100g self-raising flour
  • 100g  plain flour
  • ¼ tsp  bicarbonate of soda
  • 300g  golden caster sugar
  • 25g  cocoa powder
  • 200g golden caster sugar
  • 100g soft light brown sugar
  • 90g butter
  • 400ml double cream
  • 250ml mascarpone
  • 1 tsp vanilla extract
  • 1 tbsp Kahlúa or other coffee liqueur

Instruction

  • Butter and line the base of a 19cm x 7cm deep springform cake tin. Break the chocolate into a pan, add the butter and coffee mixture and warm through over a low heat until it melts together.  Beat the eggs in a bowl until they slightly thicken, then stir in the buttermilk. Sift the flours, bicarbonate of soda, sugar and cocoa into another mixing bowl.
  • Heat the oven to 160C/fan 140C/gas 3. Pour the chocolate and egg mixtures into the flour mixture, and stir until everything is mixed and smooth.  Pour this into the prepared tin and bake for 1½ hours in the oven, or until a skewer pushed in comes out clean. Leave to cool in the tin, then turn out onto a wire rack to cool completely. Cut horizontally into three discs.
  • For the butterscotch cream, melt the caster sugar in a small saucepan until it starts to caramelise, then leave a little longer until it starts to turn a ruby red colour. Watch it carefully – you don’t want it to burn. Remove from the heat, and whisk in the brown sugar and butter, followed by 100ml of the cream in a thin stream, while still whisking. Return to the heat and bring to a foamy boil for about 5 minutes, whisking occasionally until all the sugar has dissolved and there are no lumps. Remove from the heat and allow to cool completely.
  • Beat the remaining double cream with the vanilla extract and coffee liqueur to soft peak stage, then fold in the mascarpone and ¾ of the burnt butterscotch mixture.
  • Spread each layer of cake with butterscotch cream and sandwich them together. Heat the remaining butterscotch really gently in a pan (or in the microwave) until it’s just runny enough to drizzle, but not too warm or the cream will melt.
  • Top the cake with the reserved burnt butterscotch sauce, allowing some to fall down the sides.