Preheat oven to 350F. Stir together wafer crumbs and cinnamon. Pat into bo
Beat cream cheese until light and fluffy. Beat in sugar and cocoa powder. Beat in egg. Stir in 2 cups sour cream, coffee liqueur and vanilla. Turn i
Spread remaining sour cream evenly over top. Return to oven 1 minute to g Remove from springform pan. Just before serving, dust top with cocoa powder