Heath Bars
["1 c. butter, softened", "1 c. firmly packed brown sugar", "1 egg yolk", "1 tsp. vanilla", "2 c. all-purpose flour", "18 to 19 Heath English toffee snack size bars, crushed and divided", "1/2 c. finely chopped pecans"]
["Preheat oven to 350\u00b0.", "In large bowl with electric mixer, beat butter well; blend in brown sugar, egg yolk and vanilla.", "By hand, mix in flour, 2/3 cup Heath bars and nuts.", "Press into ungreased 15 1/2 x 10 1/2-inch jellyroll pan.", "Bake 18 to 20 minutes or until browned.", "Remove from oven and immediately sprinkle remaining Heath bars over top.", "Cool slightly; cut into bars while warm."]
["butter", "brown sugar", "egg yolk", "vanilla", "flour", "toffee snack", "pecans"]