chocolate cake is a cake flavored with melted chocolate, cocoa powder, or both. It is one of the most popular cakes in the world, and there are many different recipes and variations. The earliest known recipe for chocolate cake was published in 1764 by Dr. James Baker in his book The Art of Cookery Made Plain and Easy. Baker's cake was made with melted chocolate, sugar, eggs, flour, and spices. In the 19th century, chocolate cake became more popular in the United States. In 1847, Eliza Leslie published a recipe for chocolate cake in her book The Lady's Receipt Book. Leslie's cake was made with cocoa powder, sugar, eggs, flour, and baking powder. Chocolate cake continued to grow in popularity in the 20th century. In 1927, the Betty Crocker Company published a recipe for chocolate cake in their cookbook Betty Crocker's Picture Cook Book. Betty Crocker's cake was made with cocoa powder, sugar, eggs, flour, baking powder, baking soda, and salt.