Crush 10-12 Oreos in a zip-top bag using a rolling pin until coarse crumbs form.
Spoon 1-2 tablespoons of the crushed Oreos into each muffin liner, pressing them down to form a crust. Chill for 10 minutes.
In a mixing bowl, beat 1 cup of heavy cream with an electric mixer until stiff peaks form. Set aside.
In another bowl, beat the softened cream cheese, powdered sugar, and vanilla extract until smooth.
Gently fold the whipped cream into the cream cheese mixture until fully combined.
Spoon the filling over the Oreo crusts in the muffin liners, filling nearly to the top. Smooth with a spatula.
Crush 2-4 more Oreos and sprinkle the crumbs on top for decoration. Optionally, add a whole mini Oreo on top.
Refrigerate for at least 2 hours, or overnight for best results.
Notes
For a gluten-free version, use gluten-free Oreos. You can also experiment with flavors like adding instant coffee for a mocha twist or swirling in peanut butter.