Creating this amazing Frozen Pink Lemonade Pie involves a few simple steps. Follow the instructions below:

1. Prepare Your Crust: Begin by placing the pre-made graham cracker crust in the freezer for 10 minutes to firm it up.
2. Mix Lemonade and Milk: In a large mixing bowl, combine the thawed pink lemonade and sweetened condensed milk. Stir gently until well mixed.
3. Fold in Whipped Topping: Carefully fold in the whipped topping until you achieve a smooth texture. Avoid overmixing, as you want to retain its light and airy quality.
4. Add Lemon Zest: If using, add lemon zest to the mixture for an extra burst of flavor. Mix gently to incorporate.
5. Pour into Crust: Pour the mixture into the chilled graham cracker crust, smoothing the top with a spatula.
6. Freeze: Cover with plastic wrap and place the pie in the freezer. Freeze for at least 4 hours or until firm, preferably overnight.
7. Garnish: Before serving, optionally garnish with lemon slices or strawberries on top for a beautiful presentation.
8. Slice and Serve: Remove the pie from the freezer and let it sit for a few minutes to soften slightly, making slicing easier.

These steps will guide you in creating an utterly delightful Frozen Pink Lemonade Pie effortlessly.