Step 1

In a large bowl, beat the cream cheese with an electric mixer until smooth. Scrape the sides and bottom of the bowl and beat again until lump-free.

Step 2

Add the sweetened condensed milk and blend until smooth. Then, add the lemon juice and zest and stir until thoroughly combined.

Step 3

Pour the filling into the graham cracker crust, smooth the top with a spatula, and refridgerate for at least 4 hours.

Step 4

When the filling is set, top with whipped cream or whipped topping, if desired. Then slice, serve, and enjoy!