To prepare the upside-down orange cake, grate the zest of one orange for the batter and set it aside. Then squeeze the ...

Until recently, I mostly used citrus zest in baking; a half cup in a cake batter was my usual approach. However, the idea of a whole orange in an upside-down cake always seemed a bit daunting.

Mary Berry's upside-down cake is topped with caramel and apricots ... Quickly remove from the heat and add knobs of the butter and the orange liqueur. Stir, then pour into the base of a deep ...

In the recipe for her upside down blueberry cake ... Nigella also adds the zest of an orange and orange juice to the cake for a refreshing and citrusy kick. Taking just under an hour to cook ...