Put the fresh yeast with a teaspoon of salt and a teaspoon of sugar in a small bowl with a lid and let it dissolve.
Mix the flour, fried onion and buttermilk together. When the yeast is liquid, add and stir in until it is a compact dough.
Bring the whole thing into the desired shape and preheat the oven to 180 ° C. Put the bread in the oven with a small bowl of water and bake for 60 minutes.