Epic Mint Choc Chip Layer Cake Recipe | Cupcake Jemma

Jamie and the guys at Hotpoint were kind enough to invite me along to their flashy kitchen at Food Tube HQ to try out some new kit, so I thought what better way to test things out than a Mint Choc Chip layer cake! ....Sponsored by Hotpoint Recipe - For the cake 550g caster sugar 525g plain flour 95g cocoa powder 3/4 tsp salt 1.5 tsp bicarbonate of soda 200g dark choc chips 350ml cold coffee 350ml buttermilk 320ml vegetable oil 5 large free range eggs 1/4 tsp peppermint extract For the buttercream - 500