½ tsp peppermint extract
green and red gel food colouring
150²µ/5½´Ç³ú caster sugar
3 tbsp cocoa powder
500g/1lb 2oz icing sugar
125²µ/4½´Ç³ú self-raising flour
125²µ/4½´Ç³ú vegetable oil
250g/9oz unsalted butter, softened
2 free-range eggs, beaten
2 tbsp milk