Borș (bran)

Borș, also known as Bran, is a sour liquid that is commonly used in Eastern European cuisine. It is made by fermenting wheat, corn or barley bran (the outer layers of grain) with water, and often some kind of sugar or flour.

Think of it like making lemonade, but instead of adding lemon to the water, you use the bran and let it sit for a while to create a sour taste, kind of like the sour patch candies.

The fermentation process creates lactic acid, which gives the borș its sour flavor. Borș can be used as a base for soups and stews, or as a souring agent in other dishes.

So, if you want to make a tasty soup, you can start by boiling some vegetables in a pot, then add some borș to give it a sour taste. The borș will also give the soup a nice tangy flavor that many people enjoy.

Overall, borș is a simple but important ingredient in Eastern European cuisine, that adds a unique sourness to many dishes.