Bake 28 to 31 minutes or until toothpick inserted 2 inches from side of pan comes out almost clean. Cool completely on cooling rack, about 1 1/2 hours. Freeze in pan 15 minutes. Using foil to lift, remove brownies from pan, and peel foil away. To cut brownie into triangles, cut into 3 rows. Cut each row into 5 triangles (See More About This Recipe). Set aside leftover pieces for snacking.