Toffee Bars - cooking recipe

Ingredients

1 c. butter or margarine
1 c. packed brown sugar
1 egg yolk
1 tsp. vanilla
2 c. flour
1 (12 oz.) pkg. semi-sweet chocolate chips
1 c. chopped walnuts

Preparation

Beat butter for 30 seconds. Add brown sugar and beat until fluffy. Beat in egg yolk and vanilla. Gradually add flour and beat well. Press evenly in 13 x 9 x 2 baking pan and bake for 20 minutes in 350\u00b0 oven. Immediately sprinkle chocolate pieces on top and let stand until softened (about 5 minutes) and spread evenly. Sprinkle with nuts. Cut into bars while warm.