Mix yeast and sugar in 125 ml lukewarm water. Put flour, salt and egg in a bowl. Add yeast and water. Knead with the dough hooks of the hand mixer at slow speed. Continue kneading at highest speed for about 10 minutes.
Cover the dough with a cloth and let it rise in a warm place for about 1 hour.
Meanwhile peel the garlic and chop it finely. Heat the oil in a pot and fry the garlic in it. Add tomatoes and simmer for 10-15 minutes. Remove from the heat, season with salt and pepper and let it cool down for about 30 minutes.
Press sausage meat out of the skin. Form about 40 small balls from the sausage meat. Let mozzarella drip off and tear up. Halve the dough, roll out one half of the dough on a floured work surface (approx. 26 cm Ø).
Place the dough on a baking tray lined with baking paper and spread with about half of the tomato sauce. Spread about half each of the meatballs and mozzarella on top. In the preheated oven (electric cooker: 250 °C/ circulating air: 225 °C/ gas: see
manufacturer) Bake for 10-12 minutes.
Wipe it with the remaining ingredients to make a second pizza. Remove the first pizza from the oven and garnish with fresh basil. Cut into pieces and arrange. Bake the second pizza at the same temperature for 10-12 minutes.