Ensure the oven is preheated to about 350 degrees Fahrenheit or equivalent of 175 degrees Celsius.

Bake the graham cracker and mix it with the granulated sugar and melted butter in a medium bowl. Mix until well combined.

Spread the mixture onto a 9-inch pie pan and press it even at the bottom and the sides.

Bake the crust for 10 min until it is slightly golden. Allow it to cool as it makes the preparation of the filling easier.

In a large bowl mix the sweetened condensed milk and the egg yolks until they are well incorporated.

Very slowly incorporate the key lime juice while constantly stirring the mixture. Blend until well combined and durably homogenized.

Stir in the grated lime zest if you are using it.

Tip the filling mixture into the prepared pastry case, and level the surface with a spoon.

Place the pie in the oven which has been preheated and bake for 15 minutes until the filling is solid.

Take out the pie from the oven and let the filling to cool to the room temperature before chilling it in the refrigerator for not less than 2 hours or until it is firm.

Whip the heavy whipping cream in a bowl which has been kept in the refrigerator using an electric mixer at medium speed until it began to clot.

After last layer, mix in powdered sugar and vanilla extract and whip until you get stiff peaks.

Finally, spread the whipped cream on the pie and chilled it the best time before serving, or pipe it in a pretty manner.

You may garnish the stew with lime slices or lime zest if you wish to do so.

Take this easy to slice, easy to serve Publix Key Lime Pie and share it with friends and loved ones!