Put the flour in a bowl and mix with the dry ingredients. Add water, milk and oil and knead into a soft dough. Add additional flour or milk as needed. Cover the dough and let it rest for about 30 minutes.
Then roll out the dough approx. 2 cm thick and shape into circles. Cover and let the donuts rest for about half an hour.
Then whisk the egg and brush the rings with it. Roll in sesame seeds and bake for about 20 minutes at 200 ° C (top / bottom heat) until golden brown.