Preheat the oven with saucepan (24 cm) and lid to 220 ° C top / bottom heat.
Cut the dried tomatoes into small cubes and finely grate the parmesan. Knead the flour with salt, sugar and buttermilk for about 15 minutes to form a smooth dough. Then knead in the baking soda and the other ingredients. Shape the dough into a round flatbread.
Carefully take the hot pot out of the oven, dust the bottom with a little flour and then put the dough in the hot pot. Put the lid on the pot and bake for about 30 minutes.