Chocolate brownie

A chocolate brownie, or simply a brownie, is a chocolate baked dessert bar. Brownies come in a variety of forms and may be either fudgy or cakey, depending on their density. Brownies often have a glossy "skin" on their upper crust and may include ingredients such as nuts, frosting, or chocolate chips. A variation containing brown sugar and vanilla rather than chocolate in the batter is called a blond brownie or blondie. The brownie was developed in the United States at the end of the 19th century and popularized in the country during the first half of the 20th century.