01 -
Turn your ladyfingers into fine powder using a blender or smash them in a plastic bag with a rolling pin.
02 -
Combine mascarpone, powdered sugar, coffee, liqueur (if you want), and vanilla in a bowl until you get a smooth mixture.
03 -
Put in the cookie powder and stir until you've got a soft but firm dough.
04 -
Stick the dough in the fridge for about 30-45 minutes so it gets a bit firmer.
05 -
With slightly wet hands, roll the mixture into walnut-sized balls.
06 -
Cover each truffle completely by rolling it in cocoa powder.
07 -
Keep them in the fridge for at least an hour before serving.