Larger Marzipan Fruit Cake

Our answer

Nigella's Marzipan Fruit Cake (from Domestic Goddess) is a fruit cake that is studded with nuggets of marzipan. The marzipan helps to add moisture and "squidge" to the cake. The cake is made in a 20cm (8-inch) springform cake tin.

Unfortunately scaling cakes is not straightforward, and not something we can do for most cakes. However it is generally easier to scale up fruit cakes as they cook at a lower temperature and can tolerate longer cooking times. Generally to scale a fruitcake from 20cm to 23cm (9 inches) you would need 1 1/4 (1.25) times the ingredients of the 20cm cake (use one egg yolk instead of half an egg). For baking you would need to add about 30 minutes to the baking time, but the best guide is to make sure that the cake feels firm on top and a cake tester inserted into the centre comes out clean. However we must emphasise that we have not tested this size cake ourselves so cannot guarantee the results. If you are looking for several sizes of rich fruit cake then you may also like to look at the fruit cake chart in Nigella's book Christmas as this has a chart for 3 sizes of cake (p172).