Step 1

Preheat oven to 350°F.

Step 2

In a large bowl, stir together the graham cracker crumbs, sugar, and melted butter.

Step 3

Pat into a 9-inch pie dish, packing down the crumbs gently until they stick together (if you press too hard, the crust will be crumbly).

Step 4

Bake for 10 minutes. Remove from the oven and let cool completely.

Step 5

In a large bowl, whisk together the sweetened condensed milk, lemonade concentrate, and yellow food coloring (if using).

Step 6

Fold in the whipped topping.

Step 7

Pour into the cooled crust. Refrigerate for at least 4 hours or freeze for at least 2 hours.