A chocolate brownie, or simply a brownie, is a chocolate baked confection. Brownies come in a variety of forms and may be either fudgy or cakey, depending on their density. Brownies often, but not always, have a glossy "skin" on their upper crust. They may also include nuts, frosting, chocolate chips, or other ingredients. A variation made with 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 there during the first half of the 20th century. Brownies are typically eaten by hand, often accompanied by a glass of milk, served warm with ice cream (à la mode), topped with whipped cream, or sprinkled with powdered sugar and fudge. In North America, they are common homemade treats and they are also popular in restaurants, ice cream parlors and coffeehouses. One legend about the creation of brownies is that of Bertha Palmer, a prominent Chicago socialite whose husband owned the Palmer House Hotel. In 1893, Palmer asked a pastry chef for a dessert suitable for ladies attending the Chicago World's Columbian Exposition. She requested a cake-like confection smaller than a piece of cake that could be included in boxed lunches. The result was the Palmer House Brownie, made of chocolate with walnuts and an apricot glaze. The modern Palmer House Hotel serves a dessert to patrons made from the same recipe. The name was given to the dessert some time after 1893, but was not used by cook books or journals at the time. The first-known printed use of the word "brownie" to describe a dessert appeared in the 1896 version of the Boston Cooking-School Cook Book by Fannie Farmer, in reference to molasses cakes baked individually in tin molds. However, Farmer's brownies did not contain chocolate. In 1899, the first-known recipe was published in Machias Cookbook. They were called "Brownie's Food". The recipe appears on page 23 in the cake section of the book. Marie Kelley from Whitewater, Wisconsin, created the recipe.