It's a barbecue sauce. Orleans is a mixture of spices and seasonings. The barbecue sauce made of Chili powder, garlic, onion powder, black pepper powder, thyme, oregano, etc. is rich in flavor, slightly spicy and sweet. This sauce was originally used for roast chicken, and later it was gradually used for seasoning barbecue, grilled fish and other foods. It is very popular in the United States and other countries, so the word Orleans has gradually become synonymous with this barbecue sauce.