Dissolve yeast, sourdough and 1 tablespoon of salt in 500 ml of lukewarm water. Add to the flour and mix with the dough hooks of the hand mixer. Knead into a smooth dough on a floured surface, cover and leave to rise in a warm place for 20 minutes.
Then mix in the nuts. Cover and leave to rise for another 30 minutes in a warm place. Knead the dough briefly and form 2 round flat breads (approx. 20 cm Ø). Put them on a greased baking tray and let them rise covered for another 30 minutes.
Prick the dough several times with a fork, brush with salt water and bake with a cup of water on the baking tray in the preheated oven (electric cooker: 225 ° C/ gas: level 4) for about 10 minutes.
Turn the temperature down (electric oven: 200 °C/ gas: level 3) and then bake the bread for another 30 minutes. Each flatbread results in about 10 slices.