1 (6 oz.) can lemonade frozen concentrate
1 pt. vanilla ice cream, softened
Yellow food coloring, if desired
3 1/2 c. (8 oz.) thawed Cool Whip
1 graham cracker pie crust

Place concentrate in large mixing bowl and beat about 30 seconds. Gradually spoon in ice cream and blend. Fold in whipped topping. Add food coloring, if desired. Whip until smooth. Freeze, if necessary, until mixture will mound. Spoon into pie crust. Freeze until firm, at least 4 hours. Store any leftover pie in freezer. Serves 8.