Ingredients
- 250g unsalted butter
- 200g dark chocolate
- 2 Tbsp instant coffee powder
- 1 tsp natural vanilla extract
- 250g caster sugar
- 225g plain flour
- 1½ tsp bicarbonate of soda
- 1 tsp baking powder
- 40g cocoa powder
- 3 eggs
- 80ml buttermilk
- chocolate icing, to garnish
Instructions
1 Preheat oven to 160°C. Combine the butter, chocolate, coffee and vanilla in a heatproof bowl and set over a saucepan of simmering water, stirring until melted.
2 Sift in the sugar, flour, bicarbonate of soda, baking powder and cocoa, then beat in the eggs and buttermilk. Mix until smooth, then pour into a lined 22cm cake tin and bake for 45 minutes, until a skewer can be inserted and removed cleanly. Cool on a wire rack, then ice.