Sprinkle chocolate wafer crumbs in bottom of a 7-inch springform pan. Set aside. Position knife blade in food processor bowl; add cream cheese and next 7 ingredients, processing until smooth. Add egg and process just until blended. Fold in chocolate morsels.
Slowly pour mixture over crumbs in pan. Bake at 300 for 65 to 70 minutes or until cheesecake is set. (For an 8-inch pan, bake for 45-50 minutes.) Let cool in pan on wire rack. Cover and chill at least 8 hours. Remove sides of pan, and transfer cheesecake to a serving platter. Garnish with chocolate curls, if desired.
Bake