Rich sponge cake is a type of cake that is made with a combination of butter, sugar, eggs, and flour. It is usually light and fluffy, and can be served plain or with a variety of toppings. MADEIRA is a type of Portuguese cake that is made with a combination of butter, sugar, eggs, and flour, and is often flavored with lemon or orange zest. BABA is a type of Polish cake that is made with a combination of yeast, butter, sugar, eggs, and flour, and is often soaked in rum or other spirits. GATEAU is a type of French cake that is made with a combination of butter, sugar, eggs, and flour, and is often decorated with cream, fruit, or chocolate. Rich sponge cake is a combination of all three of these cakes, creating a delicious and indulgent dessert.