Preheat your oven to 325°F (163°C). In a medium bowl, combine the chocolate cookie crumbs, melted butter, and granulated sugar. Press the mixture into the bottom of a 9-inch springform pan, creating an even layer.

Bake for about 10 minutes, then set aside to cool.

In a large mixing bowl, beat the softened cream cheese until smooth and creamy.

Gradually add the sugar and mix until well incorporated.

Add the vanilla extract, eggs (one at a time), sour cream, cocoa powder, and peppermint extract. Blend until smooth. Add a drop of food coloring for a minty green hue if desired.

Pour the filling over the cooled crust and smooth the top with a spatula.

Bake for about 55-60 minutes, or until the center is set but slightly jiggly.

Turn off the oven and crack the door open, allowing the cheesecake to cool in the oven.

Once cooled, refrigerate the cheesecake for at least 4 hours or, for best results, overnight.

Before serving, top with whipped cream and sprinkle chocolate shavings or crushed mint candies for garnish.