How to spell SOUSINO correctly?

If you're looking for the correct spelling of "sousino", it could be possible that you meant "sous vide", a cooking technique that involves vacuum-sealing food in a bag and cooking it in a water bath at low temperatures. Alternatively, if "sousino" refers to a brand or product, it might be worth researching variations like "sousino", "sousinio" or "sousnino" to find the correct term.