Classic Philadelphia Cheesecake

Step 1: Preparing the crust

1. Crush the cookies into crumbs using a blender or by placing them in a bag and rolling over them with a rolling pin. 
2. Combine the cookie crumbs with melted butter and mix well. 
3. Press the mixture evenly into the bottom of a springform pan. Place the pan in the refrigerator to let the crust set.

Step 2: Making the filling

1. In a large bowl, mix cream cheese, sugar, and vanilla extract until smooth. 
2. Add the eggs one at a time, beating well after each addition. 
3. Finally, add the sour cream or yogurt and mix until well combined.

Step 3: Baking

1. Preheat the oven to 160 degrees Celsius (320 degrees Fahrenheit). 
2. Remove the pan from the refrigerator and pour the filling over the crust. 
3. Smooth the surface with the back of a spoon or a silicone spatula. 
4. Place the pan on a baking sheet and place it in the preheated oven. 
5. Bake the cheesecake for about 50-60 minutes or until the edges are set and the center is slightly jiggly. 
6. Turn off the oven and leave the cheesecake inside for an additional hour to cool gradually. 
7. Remove the cheesecake from the oven and refrigerate it overnight (or for at least 4 hours) to allow it to fully set.

Step 4: Decorating and serving

1. Before serving, decorate the cheesecake as desired. You can dust the surface with a thin layer of cocoa powder, top it with fresh berries, or drizzle with a glaze. 
2. Carefully release the sides of the springform pan and transfer the cheesecake to a serving plate. 
3. Serve the cheesecake chilled, slicing it into pieces and enjoying its delicious flavor.

Enjoy your cheesecake!