Make the spring piece from linseed and water the day before and leave to stand overnight. Make the pre-dough the day before using the 3 ingredients and leave to stand overnight.
In the morning, knead the source piece with the pre-dough and the remaining ingredients and pour into a greased loaf pan.
Let the dough stand for 2-3 hours and then bake for 40-60 minutes in an oven preheated to 200 ° C.