1 pkg. Pillsbury yellow cake mix
1 pkg. Pillsbury fudge frosting mix
1/3 cup butter, melted
2/3 cup chopped nuts
1 cup water
3 eggs

Grease and flour 13x9-inch baking pan.

In small bowl, combine 1 cup dry cake mix (reserve remaining for cake), 1/2 cup dry frosting mix (reserve remaining for frosting) and 1/3 cup butter. Stir until crumbly; add nuts. Press on bottom of prepared pan.

In large bowl, blend remaining dry cake mix, water and eggs until moistened; beat as directed on package. Pour over mixture in pan.

Bake at 350°F for 40 to 50 minutes. Cool. Frost with remaining frosting mix prepared as directed on package, decreasing water by tablespoon.