Nigella had a banana cake recipe a few years back (possibly her grandmother's?) that was absolutely my go-to recipe. Unfortunately I have misplaced my written copy and have been trying to find it without any luck. Could you post it again or send it please. Missing my banana cake!
Nigella has several banana bread recipes and also a recipe for a banana cake, which is the Chocolate-Topped Banan Cake. This cake is baked in a 20cm (9-inch) springform cake tin and is topped with a chocolate icing. It is more like a cake in its style and texture as it starts with a base of creamed butter and sugar.