4 sq. Bakers unsweetened chocolate
1 1/2 sticks butter
2 c. sugar
3 eggs
1 tsp. vanilla
1 c. flour
1 1/2 c. chopped walnuts

Microwave chocolate and butter in large bowl on HIGH 2 minutes. Stir until chocolate is completely melted. Stir sugar into chocolate mixture; mix in eggs and vanilla until blended. Stir in flour and nuts. Spread in greased 13x9 pan. Bake at 350 degrees for 30-35 minutes.