If using a 13x9-inch-pan-size brownie mix, prepare batter as directed on package. Pour half of the batter into pie plate. Pour remaining batter into 8-inch square baking dish. Bake at 350°F for 35 minutes or until wooden toothpick inserted in centers comes out clean. Cool completely. Use round brownie as directed in recipe. Cover and reserve square baked brownie for snacking or another use.
Enjoy a serving of this rich and indulgent treat on special occasions.