8 squares unsweetened chocolate
1 c. butter
5 eggs
1 tbsp. sugar
1 1/2 c. all-purpose flour
2 c. chopped walnuts

Melt chocolate and butter in saucepan over very low heat, stirring constantly. Cool slightly. Beat eggs, sugar and vanilla in large mixer bowl on high speed for 10 minutes. Beat in chocolate mixture on low speed. Add flour, beating just to blend. Stir in nuts. Spread in 13"x9" greased pan. Bake at 375 degrees for 35 to 40 minutes. Do not overbake. Cool in pan, then cut in squares.