Chocolate Chip Cheesecake

Crust:
1 cup chocolate cookie crumbs
2 tbsp salted butter, softened
Filling:
16 oz cream cheese, softened
1 cup sugar
2 cup (16 oz) sour cream
3 eggs
1 tbsp vanilla
12 oz chocolate chips, divided
Grind cookies into fine crumbs using a blender or food processor fitted with metal blade. Add butter and blend until smooth. Press crust into bottom of 9" sprung foam pan and refrigerate while preparing the filling.
Beat cream cheese until smooth in large bowl using an electric mixer. Blend in sugar, sour cream, eggs, and vanilla until smooth. Stir in 1/2 cup chocolate chips. Pour filling into crust-lined pan and smooth top. Sprinkle remaining chips on top.
Bake 30-40 minutes at 350 degrees. Turn oven off and leave cake in oven 1 hour to set. Chill 3-4 hours.
Makes 12-16 servings.