Frozen Lemon Squares - cooking recipe

Ingredients

1/4 c. butter, melted
1 1/4 c. graham cracker crumbs
1/4 c. sugar
3 egg yolks
1 (14 oz.) can sweetened condensed milk
1/2 c. lemon juice concentrate
whipped topping

Preparation

Combine butter, crumbs and sugar.
Press in bottom of 9-inch pan.