A financier is a type of small almond cake, often made with almond flour, egg whites, sugar, and butter. It has a light, moist texture and is typically baked in a rectangular or oval shape. The cake is known for its rich flavor and is often enjoyed as a snack or dessert. The name "financier" is believed to come from its association with French bankers, who favored the cake for its portability and ease of consumption. These treats are often found in French patisseries and can be flavored with various ingredients, such as chocolate or fruit, to enhance their taste.