Death by chocolate cupcake

For the sponge: preheat the oven to 180C/160C fan/gas 4 and line a 12-hole tin with cupcake paper cases. Tip the flour, sugar, butter and cocoa powder into a food processor and blitz on a slow speed for one minute, until you achieve a sandy consistency.

Gradually pour in half of the milk and beat until just incorporated. Don’t worry if it looks a little messy at this stage – it will come together! In a separate bowl, whisk the remaining milk together with the egg, vanilla essence and coffee. Pour into the batter and beat for a couple of minutes until smooth, scraping down the side of the bowl to catch any unmixed ingredients as you go. Fold through the chocolate chunks with a spoon.

Divide the mixture between the 12 paper cases, filling each one up two-thirds full. Bake in the preheated oven for 20 minutes or until the sponge bounces back when prodded with a finger. Leave to cool on a wire rack while you make the frosting.

For the frosting: Tip the butter, icing sugar and cocoa powder into a food processor and beat until well combined. Add the milk and then beat again for a couple of minutes until light and fluffy.

When the sponges have cooled completely, carefully spoon a third of the frosting into a piping bag and use it to decorate the first four cupcakes. Repeat until you have finished them all. Alternatively, just use a palette knife to spread about 2 tbsp of frosting onto each cupcake.

Decorate as you like with different chocolate bar pieces.