1/2 c. Fleishmann's unsalted butter
1 c. sugar
3 egg yolks
2 (1 oz.) squares unsweetened chocolate, melted
1 tsp. vanilla
1/2 c. flour, sifted
1/2 c. walnuts, chopped

Cream butter and sugar together; add egg yolks, beating well. Stir in chocolate, vanilla and flour; blend well. Stir in nuts. Pour into greased 8 x 8 x 2 inch pan. Bake at 325 degrees for about 35 minutes. Yields 2 brownies at 2.8 mg. per brownie.