A blondie is a type of dessert bar that resembles a chocolate brownie but substitutes vanilla in place of cocoa and contains brown sugar. Blondies are made with flour, butter, eggs, and baking powder and may also contain walnuts or pecans, white or dark chocolate chips, butterscotch chips, toffee chips, or other flavored chips. They differ significantly from white chocolate brownies as they contain no chocolate or chocolate flavoring, other than chocolate chips, which may be included. Blondies are not usually frosted, as the brown sugar tends to be sweet enough. The critical flavor of blondies comes from brown sugar, which gives them their distinctive molasses flavor. The ingredients for a basic blondie recipe include unsalted butter, light brown sugar, eggs, vanilla extract, fine sea salt, baking powder, all-purpose flour, and mix-ins of your choice, such as chocolate chips or nuts. Blondies are easy to make and can be customized with any mix-ins you like.