Method: Firstly, mix the butter and sugar together until fully combined, James used a freestanding mixer with a whisk attachment. The chef explained that the mixture needs to be whisked for a good eight to 10 minutes. Once the mixture is of a light colour, it is ready to add the eggs in. Then, add the eggs one by one into the mixing bowl. The chef said: “The mixture will separate and split but don’t worry about that at the moment.” Once the cake is cooked and still warm, take a skewer to create small holes within the bake (Image: ITV)