This lemon buttermilk cake is a two-layer cake, but it's baked in just one pan. Learn how to turn a 13-x-9-inch cake into a beautiful layer cake.

Spoon the mixture into the cake tin and bake in the oven for four hours, or until a skewer inserted into the middle comes out clean. Repeat steps 2 and 3 for the 23cm/9in tier and bake in the oven ...