Ingredients
Method
- Preheat oven to 180°C (160°C fan / Gas 4). Line two 20cm tins.
- Mix the cocoa with the boiling water to a paste and cool.
- Cream the butter and sugar for 4–5 minutes until pale and fluffy.
- Beat in the eggs one at a time with a spoonful of flour, then the vanilla and cocoa paste.
- Fold in the remaining flour and baking powder, loosening with milk.
- Divide between the tins and bake for 25–30 minutes until a skewer comes out clean.
- Cool for 10 minutes in the tins, then cool completely on a wire rack.
- Beat the butter, then the icing sugar, cooled chocolate, milk and salt for the buttercream.
- Sandwich and cover the cakes with the buttercream.
Notes
Bloom the cocoa in boiling water for a deeper flavour, and cool it before use.
Cream the butter and sugar for the full time for a light crumb.
Let the melted chocolate cool before beating into the buttercream.
Cool the sponges fully before frosting.
Freeze the unfilled sponge for up to 3 months.
