1/2 c. butter
2 (1 oz.) sq. unsweetened chocolate, melted and cooled
1 c. sugar
2 eggs
1 tsp. vanilla
3/4 c. all-purpose flour
1/2 c. walnuts

In medium saucepan melt butter and chocolate. Remove from heat; stir in sugar. Blend in eggs, one at a time. Add vanilla. Stir in flour and nuts; mix well. Spread in greased 8x8x2 inch baking pan. Bake at 350 degrees for 30 minutes. Cool. Cut into 16 squares.