In a medium bowl, combine crushed ladyfinger cookies and brewed coffee. Mix until the cookies are well-coated, forming a moist mixture.
In a separate large bowl, whip the heavy cream until soft peaks form. Gradually add powdered sugar and continue whipping until stiff peaks form.
Gently fold the mascarpone cheese and vanilla extract into the whipped cream mixture until well combined and smooth.
Add the moistened ladyfinger mixture to the mascarpone blend. Carefully fold until the mixture is homogenous and no cookie bits remain visible.
Using your hands, scoop out small portions of the mixture (about 1 tablespoon each) and roll them into balls.
Roll each ball in cocoa powder to coat evenly. Place on a lined baking sheet.
Once all balls are rolled, refrigerate for at least 2 hours to firm up.
Just before serving, garnish with dark chocolate shavings on top for an extra touch of elegance.
Notes
Arrange the Tiramisu Dessert Balls in a decorative box or on a platter drizzled with more cocoa powder and chocolate sauce for an eye-catching dessert display.