In a medium bowl, combine graham cracker crumbs and granulated sugar, then pour in melted butter. Mix until the crumbs are well-coated and resemble wet sand. Press the mixture firmly into the bottom of a 9-inch springform pan, creating an even layer. Chill the crust in the refrigerator for at least 30 minutes to set.

In a mixing bowl, beat the cream cheese using a hand mixer or stand mixer until it's smooth and fluffy, around 2 minutes. Gradually add the marshmallow fluff and vanilla extract, continuing to mix until everything is creamy and well-blended—about 3 minutes more. Take care to scrape down the sides of the bowl for even mixing.

Gently fold in the whipped topping with a spatula, being careful not to deflate the airy texture. The aim is to incorporate the whipped topping until just combined.

Once the crust is set, pour the cheesecake filling over the chilled graham cracker crust. Use a spatula to spread the filling evenly to the edges.

Cover the cheesecake with plastic wrap and refrigerate for at least 4 hours, but preferably overnight.

Before serving your Marshmallow Whip Cheesecake, remove the springform ring and slice it into wedges. Get creative with your toppings—add fresh berries, drizzle with chocolate sauce, or sprinkle mini marshmallows on top.