1 c. packed brown sugar
1 c. butter, softened
1 egg yolk
1 tsp. vanilla
2 c. flour
1/4 tsp. salt
4 oz. chocolate pieces
1/2 c. chopped nuts

Mix brown sugar, butter, egg yolk and vanilla. Stir in flour and salt. Press into greased 13 x 9 inch pan. Bake until light brown at 350 degrees for 25 to 30 minutes. (Crust will be soft.)

Remove from oven, place chocolate on crust. Let stand until soft, spread over crust evenly. Sprinkle with nuts. Cut into bars while still warm.