Core Ingredients and Allergens in the Warden Burger
The Warden Burger uses a beef patty, brioche bun, lettuce, tomato, pickles, onions, and a proprietary sauce as core components, with detailed allergen data published by the chain and third-party nutrition platforms Forbes. The patty is typically a seasoned ground beef blend, while the sauce contains soybean oil, vinegar, sugar, and egg-based emulsifiers, making the burger a priority concern for dairy and egg allergies SEC. The brioche bun includes enriched flour, butter, milk, and eggs, which are explicitly listed on the company's website and allergen matrices Forbes. Nutrition data shows the burger contains around 800 to 1,000 calories, 40 to 55 grams of fat, and 25 to 35 grams of protein per standard serving, with sodium levels often exceeding 1,000 mg.
Sauce Composition and Additives
The proprietary sauce in the Warden Burger is formulated with soybean oil, distilled vinegar, sugar, egg yolk, and mustard flour, with preservatives such as calcium disodium EDTA used for shelf stability SEC. The ingredient list mirrors commercial restaurant-style sauces, and the chain discloses the full profile on its nutrition portal and allergen guide Forbes. Additives include modified food starch and natural flavors, which are common in fast-food condiments and are reviewed by the FDA for approved uses SEC. The sauce contributes a significant portion of the burger's total sugar and sodium, with a single serving often adding 5 to 10 grams of sugar and 300 to 500 mg of sodium.
Bun, Toppings, and Customization Options
The brioche bun is made with enriched wheat flour, butter, milk, eggs, and yeast, and it is the primary source of dairy and gluten in the Warden Burger Forbes. Toppings such as lettuce, tomato, pickles, and onions add minimal calories but increase fiber and micronutrient content, with lettuce and tomato providing vitamin A and vitamin C SEC. The chain allows customization by removing or substituting the bun and sauce, which can reduce total carbohydrates and allergens, and these options are detailed on the company's digital menu and allergen guide Forbes. Customers can also request single-patty or double-patty versions, which directly alter the total protein, fat, and calorie count of the meal.