1/2 c. butter
1/3 c. oil
2 c. sugar
4 eggs
1-1/2 c. flour
1 tsp. baking powder
1 tsp. salt
1/2 c. cocoa
1 c. nuts

Mix all ingredients together and pour into 10 x 13 inch pan.

Bake at 325°F for 40 minutes, or longer as necessary.