"Brose" is a word that can have different meanings:
* Brose (as in Scotch broth) is a thick soup or porridge made with barley, oats, or other grains, often with meat or vegetables. This is the most common spelling.
* Brose can also be used as a slang term for "brother" or "dude", usually used in a friendly or informal way.
So, it depends on what you're referring to!
If you're talking about the soup, "brose" is the correct spelling. If you're talking about the slang term, you might see it spelled as "bro", "brose", or "brotha".