Frozen Lemonade Pie

"This recipe was given to my husband and myself after we fell in love with the result during a summer vacation to visit his family in North Carolina. The only thing better than eating a wonderful dessert, prepared with love by family members, is being able to recreate it when you can't be together! I can't think of anything nicer on a hot summer day, though this pie is great anytime you want something cool, refreshing and simple. The recipe makes two pies, but my mother-in-law suggests storing the extra filling in a separate container and serving it with assorted cookies if you don't need two pies. Please note the chilling time (2 hours) plus thawing time (30 minutes) and plan accordingly. (I have listed this amount of time as cooking time for this recipe as well.) It will be worth the wait!..."