OP- care to share the recipe?
Ingredients
1 14 oz can Sweetened Condensed Milk
1 12 oz can Frozen Concentrate Limeade, or Lemonade, thawed
1 8 oz tub Cool Whip (tm), or equal amount real Whipped Cream (I use this)
2 8” prepared Graham Cracker Pie Crusts
Directions
1. In a mixing bowel, combine the Sweetened Condensed Milk and the thawed Limeade, or Lemonade, and mix thoroughly - there shouldn’t be any streaks.
2. Fold in the Cool Whip (tm), or Whipped Cream, until there are minimal lumps in the mixture.
3. Evenly pour the mixture in to the two prepared Graham Cracker Pie Crusts.
4. Cover and place the two pies level in a freezer to set. This takes at least eight (8) hours.
These will keep frozen for several weeks. I don’t know how long for sure, since its rare for these to last a week before “all gone” at my house.