
Separate the whites from the yolks, beat the whites into a foam for about 2-4 minutes, add salt, baking powder, beat the yolks until smooth, add flour, beat everything until smooth, then pour the liquid dough onto a baking sheet with parchment, distribute evenly over the entire surface of the baking sheet. Bake the sponge cake in a preheated oven at 180 ℃ for no more than 10 minutes.

Finely chop the tomatoes and olives, grate the cheese and chicken ham on a coarse grater. Spread the cream cheese over the entire biscuit layer, sprinkle hard cheese, tomatoes, sausage, olives, mozzarella cheese cubes on top, and roll the layer into a roll.