Brown Sugar Mix
1 cup firmly packed brown sugar
2 tablespoons butter
1 cup chopped nuts

Mix ingredients well.

Cake
1 (18.25 ounce) box yellow cake mix (no pudding added)
1 box instant butterscotch pudding mix
1 box instant vanilla pudding mix
4 eggs
1/2 cup vegetable oil
1 cup water

Preheat oven to 350 degrees F.

Beat cake ingredients about 5 minutes. Pour 1/2 of cake mix into a greased 13 x 9-inch pan. Sprinkle half of brown sugar mix over batter. Add remaining cake mix and sprinkle remaining brown sugar mix on top. Bake for 35 minutes.