My mom makes this all of the time at our lake house – it is the perfect summer dessert! I love making this because it can be done ahead of time, and it is so refreshing to serve during a hot summer day.
Sweetened Condensed Milk (14oz can)
½ cup Key Lime Juice (very important you use key lime!)
1 tub Cool Whip
Graham Cracker Crust
Combine the key lime juice and sweetened condensed milk, and stir together. Next, fold in the cool whip until everything is combined. Pour the mixture into the pie crust, and freeze for up to 2 hours. Top with cool whip (or, chocolate syrup as my sister likes it), and serve! Trust me – people will eat more than one!