Preheat oven to 350 degrees.

Crust:

Crush the graham crackers in a large sealable plastic bag or food processor.

Pour crumbs in a bowl. Add the sugar and stir. Once combined, add the melted butter and stir until completely combined.

Put the mixture into the a 9-inch pie plate and press on the bottom and sides.

Bake in 350 degree oven for 5 minutes or until golden brown and set. Remove from oven and set aside to cool.

Filling:

Put eggs yolks, sweetened condensed milk, key lime juice and vanilla extract in to a bowl.

Mix with a whisk until combined.

Pour filling into prepared graham cracker crust.

Bake in oven at 350 degrees for 15 minutes.

Remove from oven and let cool for 10 minutes before putting into the refrigerator to completely chill.

The pie will be chilled and ready to slice in about 2 hours.

Top with whipped cream and enjoy!