My favorite dessert is chocolate cake. It is cake flavored with melted chocolate or cocoa powder.
I used to have that for every birthday.  I bet chocolate is the most popular cake
It is quite popular. They can also be made with fudge, vanilla creme, and other sweeteners.
Do you happen to know the history of cake?  When was it invented?
Cake
Cake is a form of sweet food that is usually baked. In their oldest forms, cakes were modifications of breads, but cakes now cover a wide range of preparations that can be simple or elaborate, and that share features with other desserts such as pastries, meringues, custards, and pies.
The most commonly used cake ingredients include flour, sugar, eggs, butter or oil or margarine, a liquid, and leavening agents, such as baking soda or baking powder. Common additional ingredients and flavourings include
Chocolate cake
Chocolate cake or chocolate gâteau (from French: "gâteau au chocolat") is a cake flavored with melted chocolate, cocoa powder, or both.
History.
Chocolate cake is made with chocolate. It can also include other ingredients. These include fudge, vanilla creme, and other sweeteners.The history of chocolate cake goes back to 1764, when Dr. James Baker discovered how to make chocolate by grinding cocoa beans between two massive circular millstones.
In 1828, Coenraad van Houten of the Netherlands