Frozen Lemon Squares

1 1/4 cups graham cracker crumbs
1/4 cup sugar
1/4 cup butter or margarine, melted
3 egg yolks
1 (14 ounce) can EAGLE BRAND® Sweetened Condensed Milk (NOT evaporated milk)
1/2 cup lemon juice
Yellow food coloring
Whipping Cream, whipped or whipped topping

DIRECTIONS:
1. Preheat oven to 325 degrees F. Combine graham cracker crumbs, sugar and butter; press firmly on bottom of 8- or 9-inch square pan.
2. In small bowl, beat egg yolks, EAGLE BRAND®, lemon juice and food coloring (optional). Pour into prepared pan.
3. Bake 30 minutes. Cool. Top with whipped cream.
4. Freeze 4 hours or until firm. Let stand for 10 minutes before serving. Garnish as desired. Store leftovers covered in freezer.