Try this recipe from young baker Will Torrent’s first book, Pâtisserie At Home

INGREDIENTS (serves 6-8)
125g salted butter
125ml lager such as Stella Artois
125g self-raising flour
40g cocoa powder
½tsp bicarbonate of soda
125g caster sugar
75ml milk
1 egg, beaten
1tsp vanilla extract
50g dark chocolate, broken into pieces

METHOD
Preheat the oven to 180C / Gas 4 and line a 1kg loaf tin with greaseproof paper. Put the butter and beer in a saucepan over a low heat until it melts.

Sift together the flour, cocoa powder and bicarbonate of soda in a mixing bowl and add the sugar, milk, egg, vanilla, chocolate pieces and melted butter mixture. Mix to combine.

Spoon the mixture into the prepared loaf tin and bake for 50 minutes. A skewer in the middle of the cake should come out clean and the top of the cake should bounce back slightly when prodded. Allow to cool slightly in the pan, then tip out and serve warm as a dessert with a chocolate sauce, or eat cold when it becomes moist and irresistible.