1. Start by preparing the crust. Combine the Biscoff cookie crumbs and melted butter in a small bowl. Mix until the crumbs are well moistened.
2. Divide the crumb mixture evenly into the bottoms of a muffin tin lined with paper liners, pressing firmly to create a solid base. Refrigerate while you prepare the filling.
3. In a large bowl, beat the softened cream cheese with powdered sugar and vanilla extract until smooth and creamy, about 2 minutes.
4. In a separate bowl, whip the heavy cream until stiff peaks form, then gently fold the whipped cream into the cream cheese mixture.
5. Stir in the melted chocolate until fully incorporated, ensuring the mixture is smooth and luscious.
6. Spoon the cheesecake filling over the prepared crusts, smoothing the tops with a spoon or spatula.
7. Chill in the refrigerator for at least 4 hours, or until set. For a firmer texture, leave them overnight.
8. Before serving, top each cup with a piece of Biscoff cookie for that extra crunch and visual appeal.

These cups are a perfect make-ahead dessert, freeing up your time for the important things, like building that Lego masterpiece with your little ones.