1 c. butter
1/2 c. shortening
3 c. sugar
5 eggs
1/2 c. chopped black walnuts
3 c. flour
1/2 tsp. baking powder
1 c. milk
1/2 tsp. vanilla

Cream butter and shortening with sugar. Add eggs one at a time, beating after each. Mix baking powder and flour; add half to creamed mixture and beat. Add milk and vanilla, then remaining flour. Bake in 10 inch stem pan, greased and floured. Bake at 325 degrees for 1 1/2 hours. Cool on rack.