1 pkg. yellow cake mix
1 pkg. instant lemon pudding & pie mix
1/4 cup vegetable oil
4 eggs
1 cup dairy sour cream

COOKIE CRUMB TOPPING:

1/4 cup (1/2 stick) butter
1/4 cup sugar
1/2 cup pecans
3/4 cup crushed vanilla wafers (about 24)

Combine cake mix and instant pudding mix. Beat in oil, eggs and dairy sour cream. Set aside.

Melt butter. Add sugar, pecans and crushed wafers. Mix well. Press mixture on bottom of greased 9-inch tube pan with removable bottom. Pour cake mixture into the crumb lined tube pan.

Bake at 325°F for 1 hour and 15 minutes. (Place foil or drip below cake in oven).