01 - Preheat oven to 325°F. Line a 12-cup muffin tin with paper liners.
02 - In a bowl, combine crushed chocolate cookies and melted butter. Mix until crumbs are evenly moistened.
03 - Divide the crumb mixture evenly among the liners, about 1 tablespoon per cup, and press down firmly to form a base.
04 - In a large bowl, beat cream cheese and granulated sugar 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 tablespoons per cup, smoothing the tops.
07 - Bake for 16 to 18 minutes, or until centers are just set; they may jiggle slightly.
08 - Remove from oven and cool in tin for 30 minutes, then transfer to the refrigerator to chill for at least 2 hours.
09 - Just before serving, whip the heavy cream with powdered sugar until stiff peaks form.
10 - Pipe or dollop whipped cream on top of each cheesecake. Garnish with chopped or whole Mini Eggs and optional pastel sprinkles. Serve chilled.