Ingredients: red onion, extra virgin olive oil, mayonnaise, scallion, chili flake, ground beef, worcestershire, bread, butter, blue cheese, lemon, root beer extract, red cabbage, cane vinegar, prepared horseradish, napa cabbage, brown sugar, liquid smoke, hot sauce, fennel, garlic powder, ginger powder, vegetable oil, wholegrain mustard, chili sauce, molasses, onion powder, bell pepper, root beer