Crumble the yeast in a bowl and mix with sugar until it is liquid. Put salt, flour and 2 tablespoons of oil in a mixing bowl. Add about 150 ml lukewarm water and yeast. Knead with the dough hooks of the hand mixer for about 5 minutes until smooth.
Cover and leave to rise in a warm place for about 45 minutes.
Meanwhile wash parsley, shake dry and chop finely. Peel garlic and chop finely. Mix feta and crème fraîche until smooth, season with pepper. Stir in about 3/4 of the parsley. Wash the shrimps, dab dry and cut them lengthwise until just before the end of the tail (approx. 1 cm) so that the halves are still together.
Wash the tomatoes, dab dry and cut in half. Squeeze the mozzarella well between two layers of kitchen paper, cut into slices.
Knead the yeast dough well on a floured work surface with floured hands. Roll out into an oval (approx. 50 cm long, approx. 36 cm wide in the middle). Place diagonally on a baking tray covered with baking paper.
Spread with feta cream, leaving a free edge of about 1 cm. Spread the prawns on top and sprinkle with pepper. Spread tomatoes on top, cover with cheese. Sprinkle with 2 tbsp. oil. Bake in a preheated oven (electric cooker: 250 °C/ circulating air: 225 °C/ gas: see
manufacturer) Bake for 18-20 minutes. Sprinkle with the rest of the parsley.