Crisp Toffee Bars

• 1 c. butter
• 1 c. brown sugar
• 1 tsp. vanilla
• 2 c. sifted flour
• 1 c. semi-sweet chocolate pieces
• 1 c. nuts

Cream together butter, sugar and vanilla. Add flour; mix well. Stir in chocolate and nuts. Press mixture into ungreased 15x10x1″ pan. Bake at 325 degrees for 25 minutes or until browned. While warm, cut in bars or squares.