These dark chocolate cakes have a sensational surprise inside: a luscious mint cream filling. For even more mint flavour, try folding eight chopped mint chocolates into the cake batter.
Preheat the oven to 180°C/350°F/Gas 4. Arrange 12 paper cases in a bun tin (pan).
Beat together the butter and sugar until creamy. Beat in the eggs, milk and peppermint. Sift the flour, salt, bicarbonate of soda and cocoa powder over the batter and mix