For the basic dough, preheat the oven (electric cooker: approx. 50 °C). Warm the milk lukewarm. Mix milk, 1 teaspoon sugar and yeast and let rest for about 25 minutes. Mix 250 g flour and 1⁄2 tsp. salt. Add yeast milk, oil, yoghurt and egg.
First mix the ingredients with a wooden spoon. Then knead with your hands to a smooth and supple dough.
Cover the dough with a kitchen towel and leave to rise in a warm oven for about 1 hour until the volume has doubled.
After walking on floured work surface knead vigorously once again. This makes the dough more elastic and easier to shape. Then form it into 6 balls and let it rest for another 15 minutes.
Cut the cheese into thin slices. Drain tuna and capers well in a sieve.
For the pizza sauce: Peel and finely dice 1 onion and 1 garlic clove. Heat 1 tablespoon of oil in a saucepan. Sauté the onion and garlic until transparent. Add 1 tin (425 ml) of tomatoes, chop a little with a spatula.
Bring to the boil and simmer for 30-40 minutes until slightly thick. (Caution - the sauce splashes!). Wash 4 stems of oregano and 4 stems of basil, shake dry, pluck off leaves and chop finely. Stir into the finished sauce.
Season to taste with salt, pepper and sugar.
Roll out each ball with the dough roller into approx. 1⁄2 cm thin oval-shaped flat cakes (approx. 18 x 10 cm). Heat a pan (cast iron is most suitable due to its natural coating) without fat.
Fry the bread cakes in it over high heat for 1-2 minutes on each side, one after the other, until golden brown. When the bread starts to bubble, turn and fry from the other side. Preheat the oven (electric cooker: 225 °C/circulating air: 200 °C/gas: see
manufacturer). Line baking tray with baking paper. Cover breads with pizza sauce, tuna, capers and cheese. Season with salt and pepper. Bake on the baking tray in a hot oven for 8-10 minutes. Sprinkle with basil leaves if necessary.