This article is about a recipe for making a soft and moist marble butter sponge cake without using an oven. The author provides step-by-step instructions for making the cake, which involves mixing the ingredients, layering the batter in a baking tin, and finally steaming it until cooked. The cake is said to be light and fluffy, with a delicious marble swirl effect created by mixing vanilla and chocolate batter. The recipe is suitable for those who don't have access to an oven but still want to enjoy a homemade cake.
