1 c. flour
1 tsp. baking powder
1 tsp. salt
5 squares (5 oz.) unsweetened chocolate
2/3 c. butter
2 c. sugar
4 eggs
2 tsp. vanilla
1 1/2 c. chopped nuts

Mix well flour, baking powder and salt; set aside. In large saucepan, melt chocolate and butter over low heat. Stir in sugar, eggs, vanilla and flour mixture, then nuts. Turn into greased 13"x9"x2" pan. Bake in preheated 350 degree oven for 25 minutes. Cool in pan on rack.