Step 1: Prepare the Crust

1. Preheat your oven to 350°F (175°C). (Skip this step for a no-bake crust.)

2. In a bowl, mix graham cracker crumbs, melted butter, and sugar until well combined.

3. Press the mixture firmly into a 9-inch pie dish, covering the bottom and sides evenly.

4. For a baked crust, bake for 8–10 minutes and let it cool completely. For a no-bake version, chill in the fridge while preparing the filling.

Step 2: Make the Filling

1. In a large mixing bowl, whisk together the sweetened condensed milk, lemon juice, and lemon zest until smooth and thick.

2. Gently fold in the whipped cream, ensuring the mixture stays light and airy.

Step 3: Assemble the Pie

1. Pour the filling into the prepared crust, spreading it evenly with a spatula.

2. Cover the pie with plastic wrap and refrigerate for at least 4 hours, or overnight for best results.

Step 4: Garnish and Serve

1. Top with whipped cream swirls, lemon slices, or a sprinkle of zest for a beautiful presentation.

2. Slice and serve chilled.