Begin by making the chocolate cupcakes. Preheat the oven to 180 degrees Celsius or gas mark 4.
Cream together the butter and sugar. Add the flour, eggs and cocoa powder and mix well. Pour into six cupcake cases and bake for 15-20 minutes.
Leave the cupcakes to cool.
Make the buttercream by mixing together the butter, icing sugar and cocoa powder until you have a smooth consistency.
Crumble the cupcakes into a bowl using your fingers (or blitz in a food processor), stir in the buttercream and mincemeat and form balls with your hands.
Place on a plate and refrigerate for 20 minutes.
Melt the white chocolate and drizzle on the top of the Christmas Pudding Bites, then decorate with holly decorations. Leave to set.