Magic Lime Pie

Ingredients:
1 9 in. graham cracker crust
1 can (14 oz) sweetened condensed milk
½ cup lime juice
Green food coloring (optional)
1 cup whipped cream

Combine sweetened condensed milk, lime juice, and food coloring in a large bowl. Beat whipped cream until stiff peaks form. Add half to mixture and pour into crust. Top with remaining cream. Chill.