A true ‘waste not want not’ treat. Every Danish bakery has loads of cakes that are, like these Romkugler or rum balls, basically made from leftover pastries. It makes a lot of sense or bakers to and ways to use their leftovers in really delicious ways. It is best to avoid using leftovers containing raisins or strong flavours, as these will come through in the end result. Use a cinnamon swirl or two, some sponge cake and maybe some chocolate cake or a muffin. It’s a good idea to freeze leftovers as you have them – and once you have enough, make a batch of ‘rum balls’ (Romkugler) for afternoon fika.