Frozen Lemon Dessert
["2 Tbsp. butter", "16 graham crackers, crushed", "1 (21 oz.) can lemon pie filling", "1 c. sweetened condensed milk", "1/2 c. lemon juice", "1 1/2 c. whipped topping"]
["In a saucepan, melt butter.", "Stir in crumbs.", "Reserve 1 tablespoon for garnish.", "Press remaining mixture on bottom of a buttered 8 x 8-inch baking pan; set aside."]
["butter", "graham crackers", "lemon pie filling", "condensed milk", "lemon juice", "topping"]