CK has a few recipes for making Siegfried sourdough. If you are interested, please have a look there! The dough can be made according to your own preferences with spelled or wheat flour, ground whole grain or different types of flour. I used type 550 wheat flour.
Put the Siegfried dough with the other ingredients in a bowl. Process everything with the dough hook of the hand mixer first on the low level, then on the highest level very well until a homogeneous dough is formed.
You can either use this dough immediately or wrap it as a ball in cling film and store it in the refrigerator until shortly before use.
The amount is enough for a springform pan with a diameter of approx. 28 cm. The dough is easy to roll out, may not stick a lot, but you don`t need any more flour, if at all. You can bake any vegetable, meat or onion cake with it.
Bake the base for about 30 minutes at 180 ° C to 200 ° C, depending on the oven and the filling.