01 - Preheat oven to 325°F. Line a 12-cup muffin tin with paper liners.
02 - Combine crushed chocolate cookies and melted butter in a bowl. Mix until crumbs are evenly moistened.
03 - Divide the crumb mixture evenly among liners (about 1 tbsp per cup). Press down firmly to form a base.
04 - Beat cream cheese and granulated sugar in a large bowl until smooth and creamy.
05 - Add the egg, vanilla extract, and sour cream. Beat until just combined—do not overmix.
06 - Spoon the cheesecake filling evenly over each crust (about 2 tbsp per cup). Smooth the tops.
07 - Bake for 16–18 minutes, until centers are just set (they may jiggle slightly).
08 - Cool in tin for 30 minutes. Transfer to refrigerator to chill for at least 2 hours.
09 - Whip heavy cream with powdered sugar until stiff peaks form.
10 - Pipe or dollop whipped cream on each cheesecake. Garnish with Mini Eggs and optional sprinkles.
11 - Serve chilled.