Gather all ingredients.
Pour boiling water into a small bowl and stir in 1 tablespoon instant espresso coffee powder until dissolved. Set aside and allow to cool to room temperature, 30 minutes. When cool, add 2 tablespoons coffee liqueur.
Meanwhile, for the filling beat mascarpone and cream cheese in a large bowl with an electric mixer on medium until smooth. Beat in powdered sugar, remaining 1 tablespoon instant espresso coffee powder, and salt until well combined. Beat in vanilla and remaining 4 tablespoons coffee liqueur. Cover bowl, and chill in the refrigerator for 30 minutes.
For crust, combine 12 ladyfingers, almonds, and white sugar in a food processor. Pulse to fine crumbs. Remove mixture from food processor. Stir in butter until mixture is moistened.
Pat crumb mixture evenly into the bottom of a 9-inch springform pan. Place pan in the freezer until set, 15 minutes.
Beat cream in a large bowl with an electric mixer until it forms stiff peaks.
Stir one fourth of the whipped cream into the filling mixture to lighten. Fold remaining whipped cream into the filling mixture until combined.
Spread half of the filling over the crust.
Dip remaining 12 ladyfingers, one at a time, into coffee mixture to coat, about 1 second. Place atop the filling, breaking to fit as needed. Spread remaining filling evenly over the ladyfingers.
Cover and chill in the refrigerator 6 hours to overnight.
Dust cocoa powder generously over top of the cheesecake. Loosen sides of pan with a thin spatula. Remove sides of pan.
Garnish each slice with a chocolate covered espresso bean.