1 c. butter
4 sqs. baking chocolate
4 eggs, beaten
2 c. sugar
2 tsp. vanilla
1 c. flour
1 tsp. baking powder
Dash of salt
2 c. chopped nuts (optional)

Melt chocolate and butter in saucepan. Remove from stove; add rest of ingredients. Stir until well blended. Pour into 9 x 13 inch baking pan. Bake 20 minutes in 350 degree oven (no longer). Cool; cut into squares.