4 sq. Baker's unsweetened chocolate
1 1/2 sticks butter
2 c. sugar
1 tsp. vanilla
3 eggs
1 c. all purpose flour
1 c. coarsely chopped nuts (optional)

Heat oven to 350 degrees. Melt chocolate and butter completely. Add sugar and mix well. Mix in eggs and vanilla until well blended. Stir in flour and nuts. Spread in greased 13 x 9 inch pan. Bake 30 to 35 minutes. Do not overbake. Makes about 24.