Unlike a square or plain round cake pan, where you can use a ruler to figure it out, Bundt pans are typically qualified by volume rather than diameter, likely because of how the various designs ...

If you don’t have a bundt tin, you can make this in a 20cm/8in square cake tin (approx. 5½cm/2¼in deep), in which case it will need 50–55 minutes’ baking, or until a cake tester comes out ...

For this recipe you will need a 2½/4½ pints litre capacity bundt tin or a 20cm/8in square cake tin (approx. 5½cm/2¼in deep).