How do you spell crosha?

"Crosha" is not a standard English word. It could be a misspelling of several words, depending on the context:

* Croche - a type of needlework

* Crousha - a type of small pastry

* Crosh - a possible misspelling of "crosh" which is a small, hard piece of something.

To understand how to spell "crosha" correctly, we need more context. Please provide more information about the situation where you encountered this word.