Reese’s Pieces chocolate peanut butter cake

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If you’re fan of Reese’s Pieces you’re going to love this showstopping, jaw-dropping cake made with a rich chocolate sponge, peanut butter buttercream and glazed with a luxurious chocolate ganache.

The icing on the cake? Well, it has to be delicious Reese’s Pieces scattered on top of the ganache, of course.

This cake is a peanut butter fan’s dream come true and is really simple to make with our step-by-step picture recipe. This cake should take about 50 mins to cook and 30 mins to decorate (excluding cooling time)

We this cake would make an impressive cake for a birthday or special occasion – who could resist a slice?


For the sponge:

  • 400g plain flour
  • 200g golden caster sugar
  • 150g light brown sugar
  • 1½tsp baking powder
  • 1tsp bicarbonate of soda
  • 50g good quality cocoa powder
  • ½tsp salt
  • 300g melted butter
  • 1tbsp vanilla bean paste
  • 280ml water
  • 150g sour cream
  • 3 eggs

For the buttercream:

  • 250g unsalted butter
  • 250g smooth peanut butter
  • 2tsp vanilla bean paste
  • 400g icing sugar

For the ganache:

  • 200ml double cream
  • 130g dark chocolate
  • 2 packets of Reese’s Peanut butter cups