1. In a large bowl, using an electric mixer set on medium speed, beat
together cream cheese, sour cream, sugar, milk, 2 Tbsp of orange liqueur and
sherry until smooth. In a small bowl, combine coffee and remaining orange
liqueur.
2. Arrange some ladyfingers over the bottom of a 9 inch springform pan.
Brush with half of coffee mixture. Spread half of cheese mixture over
ladyfingers; smooth top. Sprinkle half of chocolate on top. Repeat
layering with remaining ladyfingers, coffee mixture, cheese mixture and
chocolate.
3. Cover with plastic wrap; refrigerate for 4 hours or overnight.