Cream together cream cheese and sugar. Slowly add milk and liqueur to cheese mixture.
Sprinkle gelatin on warm water; set aside for 5 minutes to soften. Heat in microwave oven or on stove top just until gelatin dissolves.
Add dissolved gelatin to cream cheese mixture. Fold whipped cream into mixture. Pour filling into prepared springform pan. Refrigerate for about 2 hours before unmolding.
If desired, decorate top of pie with grated chocolate or chocolate curls. Pipe whipped cream on each slice before serving
