Pink Lemonade Pie

1 graham cracker crust
6 ounces pink lemonade concentrate, thawed
4 ounces Cool Whip, thawed
1 quart vanilla ice cream, softened
Few drops red food coloring, optional

In a large bowl, combine lemonade concentrate, Cool Whip, softened vanilla ice cream and food coloring if using. Pour mixture into the graham cracker crust. Freeze about 4 hours before serving.

To serve, remove pie from freezer a few minutes before serving.

Serves 6 to 8.