1 c. butter
3/4 c. firmly packed brown sugar
2 c. all-purpose flour
1 tsp. vanilla extract

Mix above together. Pat into 10x15 inch ungreased pan. Bake at 350 degrees for 15 to 20 minutes or until golden brown. Remove from oven. Sprinkle 6 oz. Nestle's semi-sweet chocolate chips over crust. Put back in oven for 1 minute or until chocolate melts. Then spread evenly. Sprinkle with 3/4 cup chopped nuts. Cool. Cut into bars.