MIX 1 pkg (515 g) vanilla cake mix directly in lightly greased 13 x 9 inch metal baking pan, as directed on package.
PREPARE 2 pkg. (4-serving size) Jell-O Butterscotch Instant Pudding Mix as directed on package using 3 cups milk and adding 1/3 cup sugar. Pour mixture over cake batter in the pan
BAKE at 350°F for 45-50 minutes. Serve warm.