I made the Chocolate Fudge Cake and once I'd added 250mls of liquid in the cocoa mix, the batter was very watery and the resultant sponge was like a pancake. Thought I had followed the instructions exactly so no idea what happened? It tasted nice.
Nigella's Chocolate Fudge Cake (from NIGELLA BITES) is a chocolate sponge cake with a rich frosting. The cake batter is quite liquid, hence the baking time is quite long for sponge layers, but this helps to make the sponge moist and tender.
We suspect that it may not be the water that is the issue. Usually if a cake doesn't rise it is because there is not enough raising agent or they may have expired. Measure carefully with a measuring spoon set and check that they are both within the best before date. This cake also has a combination of both baking powder and bicarbonate of soda (baking soda) and if the batter is left to stand for too long then the bicarbonate of soda could expire, so make sure also that the oven is fully preheated as you start to make the batter and put the tins into the oven as soon as the cake batter has been mixed.