300 g blackberries, plus 12 extra for decoration
100 g butter
100 g milk chocolate, broken into chunks
225 g self-raising flour
175 g golden caster sugar
1 ½ tbsp cocoa powder
2 large eggs, beaten
red food colouring, or purple food colouring
For the icing
100 g unsalted butter, at room temperature
400 g icing sugar, sifted
1 tsp vanilla extract
- Heat oven to 180C/160C fan and line a 12-hole muffin tin with paper cases. Roughly crush half the blackberries with a fork so the juice is running but there are still some chunky bits. Gently melt the butter and chocolate in a saucepan. Mix the flour, sugar, cocoa powder and a pinch of salt in a large mixing bowl. Put the kettle on.
- Scrape the butter-chocolate mixture and eggs into the dry ingredients with the crushed blackberries and 100ml boiling water. Mix together until smooth, then add a little food colouring to boost the red/purple hue. Divide between the muffin cases and bake for 15 mins until risen and a skewer poked into the centre comes out clean. Lift from the tin onto a wire rack and cool completely.
- Whizz the remaining 150g blackberries to a purée. Beat the butter, icing sugar and vanilla together until really pale and fluffy – about 5 mins. Sieve the remaining blackberry purée and gently fold into the icing. Spoon into a piping bag fitted with your favourite nozzle and pipe a generous amount onto each cupcake – removing the paper case first if you want to show the colour of the sponge. Top each with a fresh blackberry and enjoy.