Frozen Lemon Squares
["1/4 c. margarine or butter, melted", "1 1/4 c. graham cracker crumbs", "1/4 c. sugar", "3 egg yolks", "1 (14 oz.) can Eagle sweetened condensed milk", "1/2 c. real lemon juice", "yellow food color (optional)", "whipped topping"]
["Combine margarine, sugar and crumbs; press into an 8 or 9-inch square pan.", "In bowl, beat egg yolks.", "Stir in milk, then lemon juice and food coloring if desired.", "Pour mixture over crust.", "Top with whipped topping.", "Freeze until firm."]
["margarine", "graham cracker crumbs", "sugar", "egg yolks", "condensed milk", "lemon juice", "yellow food color", "topping"]