Oreo cake

Oreo cake will make you very popular, with rich chocolate sponge, crunchy Oreo buttercream filling and simple Oreo decoration. This cake is a showstopper.

If you’re making this cake for a special occasion, we’d recommend making it the day before or ahead of time so the first layer of buttercream has plenty of time to set. This will ensure a smooth buttercream finish.If you want to make this cake even naughtier, cover in chocolate buttercream or even ganache instead and decorate with crushed Oreos.


For the cake:

  • 115g Trex vegetable fat
  • 340g golden caster sugar
  • 2 eggs
  • 280g self-raising flour
  • 3 tbsp good quality cocoa powder
  • ½ tsp salt
  • 1 tsp bicarbonate of soda
  • 240ml buttermilk
  • 2 tsp vanilla bean paste
  • 1 tsp white wine vinegar
  • 2x snack bags mini Oreos

For the buttercream:

  • 250g unsalted butter
  • 400g icing sugar
  • 1 packet Oreos
  • 2 tbsp boiling water
  • 1 tsp vanilla bean paste