Passion fruit tiramisu

large eggs, yolks and whites separated

sugar

rum, optional

mascarpone cheese, room temperature

~2 cups of passion fruit concentrate or pure passion fruit juice, made from about 8-10 large passion fruits or buy a frozen pack at one of the Latin grocery stores

packs of ladyfingers (4.75 oz each pack)

Fresh passion fruit pulp (with seeds) for topping, from about 2-4 passion fruits