Line a spring form cake pan with parchment or waxed paper. Pulverize the cookies in a food processor. Spread most of cookie crumbs in the bottom of the pan, reserving 1/3 cup.
In a chilled mixing bowl (and beaters), combine whipping cream, cheese, sugar, cocoa, vanilla, coffee granules, and liqueur. Mix together slowly until incorporated. Then mix on high speed, beating until very fluffy with firm peaks - the consistency of a thick shaving cream.
Spread 1/2 of the mixture in the pan - spoon it in globs, and then gently spread around, pressing down as you go. Sprinkle with 1/2 of the remaining cookie crumbs. Repeat with the other half of the filling and top with the remaining crumbs. Top with shaved chocolate.
Cover with foil or plastic wrap, and chill at least 8 hours, or overnight.