To make boxed cake mix without relying on any of the ingredients called for on the package directions, just add in a can of soda. As a seasoned baker, I've heard of Coca-Cola cakes and 7-Up cakes ...
Equipment and preparation: you will need a 7cm/2¾in diameter plain biscuit cutter and a 25cm/9in round cake board. For the ice box coffee biscuits, place the butter and sugar into a bowl and beat ...