Dip the Lady fingers in coffee mixed with amaretto and place them at the bottom of the baking dish (or the container in which you prepare the tiramisu).
Whip the whipping cream until stiff.
Mix mascarpone with sugar, amaretto and vanilla.
Then mix in the whipped cream.
Spread half of the mixture on the Lady fingers. Repeat the procedure - apply Lady fingers dipped in coffee and the rest of the cream. Sprinkle the top with cocoa and put it in the refrigerator.