Measure and prepare all ingredients. Sift flour into a large bowl. Warm milk (should be warm, lukewarm, but not hot).
Fresh yeast - finely rub with 1 tablespoon sugar (to dissolve), then add 2 tablespoons flour and 1/3 of milk, mix and set aside to rise for about 10 minutes.
Instant yeast - pour into warm milk, mix and set aside for 5 minutes.
Add remaining sugar to the flour bowl plus yeast mixture from fresh yeast + remaining milk (or milk with instant yeast).
Beat in eggs and mix slowly with a spoon. Add soft butter and mix again.
Knead everything thoroughly for about 15 minutes until ingredients are fully combined and dough is smooth, elastic and begins to pull away from the bowl or hands if kneading by hand.
Cover with cloth and set aside in a warm place for about 1 and 1/2 hours to rise.