Have your prepared, warm pie waiting for your meringue topping.

Preheat your oven to 400 degrees.

In a mixing bowl mix together egg whites, salt, and vanilla together in your stand mixer or with electric hand mixer until foamy.

Add in your sugar on tablespoon at a time until the sugar is dissolved and stiff peaks form.

Mix in marshmallow creme a spoonful at a time while continuously mixing and until the mixture is smooth and fluffy.

Spoon onto your warm pie and seal the edges of the pie with your meringue.

Make peaks in the meringue by tapping your meringue with the flat side of your spoon or silicone spatula.

Bake in the oven at 400 degrees for about 10 minutes until your meringue is the desired brownness.

Let your pie cool per the filling instructions, then enjoy!