First thing: make the coffee and let it cool down, THEN add the rum! Second, beat the whipping cream, and put it in the fridge (do not add sugar in it, just vanilla sugar, if you have one envelope in the house) Beat the egg yolks with the sugar (6 tbsp sugar) until become thick and lemon colored. Then add mascarpone cheese, beat until incorporated, and vanilla bean or vanilla sugar. At the end add whipping cream, beat until incorporated. In a pan (26cm / 40cm) line up the lady fingers, after you soaked Them one by one into the coffee (just 1 second each side). Add half of the cream, THEN line up the other half of lady fingers (same soaked in coffee) but in the opposite way. On the top you put the rest of the cream and garnish with cocoa. Put it in the fridge for at Least 6 hours! Good luck! No baking, just 30 minutes and Tiramisu is ready!