Pour flour into a bowl, form a hollow. Crumble the yeast into it and stir with 100 ml lukewarm water, 1 pinch of sugar and some flour from the rim to form a pre-dough. Cover and leave to rest in a warm place for about 15 minutes. Add 100 ml lukewarm water, 1/2 teaspoon salt and oil and knead with the dough hooks of the hand mixer to a smooth dough. Cover the dough and let it rest in a warm place for about 30 minutes.
Put the strained tomatoes and tomato paste in a pot and bring to the boil. Season with salt, pepper and 1 pinch of sugar and simmer for 5 minutes at low heat. Wash the parsley, dab dry, put some aside for garnishing, chop the rest. Stir into the sauce and season to taste again, leave to cool. Drain the pineapple, cut the pineapple slices into quarters. Clean and wash spring onions and cut into rings. Knead dough again and divide into 8 pieces. Roll out to round flat cakes (approx. 12 cm Ø) on a floured work surface. Spread on 2 baking trays lined with baking paper and spread with tomato sauce. Cover with ham, pineapple, cheese and spring onions.
Clean and wash spring onions and cut into rings. Knead dough again and divide into 8 pieces. Roll out to round flat cakes (approx. 12 cm Ø) on a floured work surface. Spread on 2 baking trays lined with baking paper and spread with tomato sauce. Cover with ham, pineapple, cheese and spring onions. Bake one after the other in a preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 15-20 minutes. Serve garnished with parsley
Waiting time approx. 30 minutes