For the vanilla tiramisu, beat the eggs and powdered sugar until foamy. Sift flour with baking powder and stir into the egg mixture.
Spread the dough on a baking tray lined with baking paper (38 x 25 cm) and bake at 190°C for about 12-15 minutes. Remove paper and let cool.
Cover sponge cake base with baking frame. Stir Qimiq in a bowl until smooth. Stir in powdered sugar, iced coffee powder and vanilla yogurt.
Soak gelatine in cold water, squeeze out, dissolve in 1 tablespoon hot water and stir into the Qimiq mixture.
Spread half of the cream on the sponge cake base. Mix rum, amaretto and coffee. Briefly coat the sponge cake and place on top of the cream.
Spread the remaining cream on top, sprinkle with cocoa powder and chill overnight.
Before serving, cut the vanilla tiramisu into slices.