Instructions

1. Preheat your oven to 175C and line two cupcake trays with liners.  In a large saucepan bring the coke and butter to a simmer until melted together.  Sift in the cocoa powder followed by the sugar, whisk until combined.
2. In a large jug whisk together the eggs and soured cream until smooth, slowly add the egg mixture to the cola, whisking constantly.  Add the flour and baking powder, fold together till everything is smooth and silky.  Fill the cupcake cases 3/4 full and bake for twenty minutes.
3. While the cakes are baking prepare the ganache.  Break the chocolate into small pieces and place in a bowl, set aside.  In a small saucepan bring the double cream to a simmer, once small bubbles start to form pour the cream over the chocolate and leave for two minutes.  Stir till smooth and combined before stirring in the Jack Daniels.  Set aside to thicken slightly while you await your cupcakes.
4. Once your cupcakes are baked and cooled use an apple corer, or a sharp knife to hollow out the centre of each cake.  Fill each hollow with ganache and set aside while you make your butter cream.
5. For the butter cream place the butter and icing sugar in the bowl of an electric mixer, cover with a tea towel and mix on a medium speed.  Once combined add the Jack Daniels and the milk and mix, again on a medium speed.  If the frosting is still too thick to pipe add a splash of milk until you reach a good consistency.  Pipe a swirl on top of each cupcake before dolloping some more ganache on top followed by a jelly cola bottle.