Preheat oven to 350 degrees F and grease a ceramic pie pan with cooking spray. Set aside.

In a medium sized bowl, stir together ground cookies, ground pistachios, sugar, salt, vanilla, and melted butter.

Dump into the prepared pan, then use your hands to press the mixture firmly into the bottom and up the sides of the pan.

Bake in preheated oven for 8 minutes.

Remove from oven (keep oven set to 350 degrees F) and cool for 10 minutes while you make the filling.

In a large bowl, whisk together condensed milk, key lime juice, sour cream, vanilla, and lime zest.

Pour into slightly cooled crust, then bake in preheated oven for 10 minutes.

Cool pie at room temperature, then transfer to the fridge and chill completely before serving.

Garnish with whipped cream if desired.

Take 5 seconds to rate this recipe below. We greatly appreciate it!