Cake Ingredients (Makes 12):

60g unsalted butter at room temperature
150g caster sugar
1 egg
20g cocoa powder
40ml red food colouring (I used 25 and make up the difference with more vanilla extract)
½ tsp vanilla extract
120ml buttermilk
150g plain flour
½ tsp bicarbonate of soda/ bread soda
1½ tsp white vinegar
1 x 12-hole cupcake tray, lined with paper cases

For the frosting:
250g icing sugar, sifted
40g unsalted butter, at room temperature
125g cream cheese, cold (don’t use the light stuff.. full fat is the way to go)