Easy peasy and deliciously yummy.
50g/1.8 oz cocoa powder
6 tablespoons boiling water
100g/3.5 oz butter, softened
275g/9.7 oz sugar
125ml/4 fl oz milk
175g/6.1 oz self raising flour
1 teaspoon baking powder
For the icing
110g/4 oz dark chocolate
1 tablespoon golden syrup (or light corn syrup)
25g/1 oz butter
Preheat your oven to 350F/180C/Gas 4.
Mix the cocoa with the boiling water until smooth. Whisk in the butter. Then add the rest of the cake ingredients and mix until combined.
Line a 12 x 9" baking tin with baking parchment.
Pour the batter into the prepared tin and bake in the oven for 20-35 minutes.
Leave to cool.
To make the icing melt the chocolate in a bowl over a pan of simmering water or in the microwave. Then add the butter and syrup and mix to combine.
Leave to cool, stir it occasionally. Once it is a thick enough consistency to spread, spread it over your cake. It gets thicker as it cools. If it sets too hard just warm it again to soften.
Decorate with sprinkles if you wish!