If using a cake mix with pudding in the mix, reduce water to 1 cup.
Prepare batter as directed; pour into 13x9-inch pan sprayed with cooking spray. Bake in 350°F oven 40 to 45 min. or until toothpick inserted in center comes out clean. Cool completely. (Do not remove cake from pan.) Sprinkle cake with sugar just before serving.
High Altitude Directions
Prepare as directed, adding 1/4 cup flour and increasing water to 1-1/2 cups.