Source: Lori Mooney (originally from Betty Crocker's Chocolate Cookbook), adapted slightly Ingredients: 1/2 cup butter 12 oz. bag semi-sweet chocolate chips 1 2/3 cups sugar 3 eggs 1 teaspoon vanilla 1/2 teaspoon baking powder 1/2 teaspoon salt 1 1/4 cups flour Directions: Heat the butter and chocolate chips in a saucepan over low heat, stirring constantly, until melted; cool slightly. Transfer the mixture to a mixing bowl. Add the sugar and mix until combined. Add the eggs, one at a time, mixing after each addition. Add the vanilla and mix until combined. Add the baking powder and salt and mix until combined. Slowly add the sugar, a little at a time, until all combined. Spread the batter in a greased 9x13 dish. Bake at 350 for 20-25 minutes, until a toothpick inserted in the center comes out clean.