Chocolate-Orange Cheesecake

Directions

1. 1
   Heat oven to 350F.
2. 2
   Combine wafer crumbs, cinnamon and butter; press onto bottom of 9-inch springform pan.
3. 3
   Beat cream cheese and sugar in large bowl with mixer until blended.
4. 4
   Add sour cream and vanilla; mix well.
5. 5
   Add eggs, 1 at a time, mixing on low speed after each just until blended.
6. 6
   Transfer 3 cups batter to medium bowl; stir in melted chocolate.
7. 7
   Pour over crust.
8. 8
   Bake 30 min.
9. 9
   Meanwhile, stir liqueur and orange zest into remaining batter; refrigerate until ready to use.
10. 10
    Reduce oven temperature to 325F.
11. 11
    Spoon remaining batter over baked chocolate layer in pan; bake 30 min.
12. 12
    or until center is almost set.
13. 13
    Run small knife around rim of pan to loosen cake; cool before removing rim.
14. 14
    Refrigerate cheesecake 4 hours.
15. 15
    Heat marmalade just until warmed; spoon over cheesecake just before serving.