Butterscotch Nut Bars
["1 1/2 c. flour", "3/4 c. brown sugar", "1 tsp. salt", "1/2 c. margarine", "1 (13 oz.) can mixed nuts"]
["Mix as for pie crust.", "Pat into 9 x 13-inch pan.", "Bake 10 minutes at 350\u00b0."]
["flour", "brown sugar", "salt", "margarine", "mixed nuts"]