1/2 c. butter
1 c. sugar
1 tsp. vanilla
2 lg. eggs
1/2 c. flour
1/2 c. cocoa powder (unsweetened)
1/4 tsp. baking powder
1/4 tsp. salt
1/2 c. chopped nuts

Preheat oven to 350 degrees. Grease and flour 8" pan. Beat butter in large mixing bowl until light. Gradually beat in sugar, then vanilla. Add eggs, 1 at a time, beating well after each. Combine flour, cocoa, baking powder and salt. Add to butter mixture. Stir in nuts. Bake 25 minutes more.