1Heat oven to 300.
Stir together crumbs,sugar,cocoa,and butter.
Press onto bottom of a 9" springform pan.
2in large mixer bowl,beat cheese until fluffy.
Gradually beat in sweetened condensed milk then peanut butter chips until smooth.
Add eggs and vanilla;beat well.
stir in small chocolate chips.
Pour over crust.
3Bake 55-65 minutes or until center is set.
Cool.Refrigerate.Garnish as desired. Cover;refrigerate leftover cheesecake.