Prepare the Crust: Preheat your oven to 325°F (163°C). In a medium-sized mixing bowl, combine the chocolate chip cookie crumbs with the melted butter using a fork until the mixture is well blended. Press this crumb mixture firmly into the bottom of a 9-inch springform pan, ensuring it forms an even layer. Bake in the preheated oven for 10 minutes, then remove the pan and allow it to cool completely.
Make the Cheesecake Filling: In a large mixing bowl, use an electric mixer to beat the softened cream cheese and granulated sugar together on medium speed until the mixture is smooth and creamy, about 2-3 minutes. Add the vanilla extract and mix until fully incorporated.
Mix in the Eggs: With the mixer on low speed, add the eggs one at a time, mixing briefly after each addition just until blended. Avoid overmixing to ensure a light texture.
Incorporate Sour Cream: Gently fold in the sour cream with a spatula until incorporated. Next, sift the flour and a pinch of salt over the mixture, folding gently until just combined, being careful not to overwork the batter.
Stir in the Chocolate Chips: Carefully fold in the mini chocolate chips to distribute them evenly throughout the batter.
Combine Layers: Pour the cheesecake filling over the cooled cookie crust in the springform pan. Use a spatula to spread it evenly across the surface.
Bake: Place the cheesecake in the oven and bake for about 50-60 minutes, or until the edges are set and the center appears slightly jiggly. Once baking is complete, turn off the oven, crack the oven door open slightly, and allow the cheesecake to cool inside for 1 hour.
Chill: After an hour, take the cheesecake out of the oven and let it cool to room temperature. Once cooled, cover it with plastic wrap and refrigerate for at least 4 hours, or preferably overnight, to ensure it sets completely.
Serve: Once fully chilled and set, carefully remove the cheesecake from the springform pan. Slice it into 12 equal pieces, serving each slice as is, or enhancing it with extra mini chocolate chips or a drizzle of chocolate syrup on top.
Notes
For an attractive presentation, garnish each slice with a dollop of whipped cream and a sprinkle of mini chocolate chips.