In a large bowl, beat the sweetened condensed milk and cream cheese together until creamy.
Then, add the lemonade concentrate and lemon pudding mix.
Continue beating until the mixture becomes thick and creamy.
Pour the prepared filling into the graham cracker crust, ensuring it is evenly spread.
FREEZE:
Place the pie in the freezer and allow it to freeze until it becomes hard, typically taking around 6-8 hours.
TO FINISH:
Once the pie is frozen, take it out and use a piping bag to create decorative designs with Cool Whip around the edges. Optionally, garnish each slice with lemon slices or lemon zest.
Before serving, let the frozen pie sit at room temperature for about 5 minutes to soften slightly.