Preheat oven to 325°F. Grease and flour a 9-by-13-inch sheet cake pan. Combine flour, baking soda, baking powder, salt, cloves, cinnamon, allspice, and nutmeg; set aside. In a mixing bowl, cream ...
Add the flour, spice and baking powder and ... so they are easy to incorporate into the cake mixture. Bananas get sweeter as they ripen and this recipe has been tested using very ripe bananas.
For the cake, put the unpeeled oranges in a pan with a lid. Cover with cold water, bring to the boil and simmer for 1½-2 hours, or until the skins are soft and the insides broken down.