What Is French Onion Soup Mix Made Of?
French onion soup mix is typically made from a blend of dehydrated onions, beef bouillon, salt, cornstarch, sugar, and various herbs and spices such as thyme and black pepper. Some variations may also include garlic, celery seed, or Worcestershire sauce. When mixed with water or broth, this mixture creates a flavorful base for a classic French onion soup or can be used as a seasoning in other dishes.