A great cake recipe for any occasion:
Robert thoroughly like his brother Hermann (cake) does not tolerate metal objects, so use a plastic or possibly glass bowl (2, 5 liters capacity) and a wooden or possibly plastic spoon! Flour and sugar in a sufficiently large bowl with lid (Tupperware) form and with the milk, including buttermilk to a smooth dough.
This approach you now stand in the kitchen until the dough begins to ferment – ie bubbles. Depending on the heat 1-2 days.
Later you can keep the dough in a closed container in the refrigerator and feed as follows in the Robert letter.
This wheat sourdough can be prepared and fed in the same way with wheat flour type 812.