A Double Stack from Wendy's contains the following ingredients:
Jr. Hamburger Patties: Ground Beef, Salt. HAMBURGER PATTIES ARE COOKED ON THE SAME GRILL AS AND MAY COME IN CONTACT WITH INGREDIENTS THAT CONTAIN MILK AND SOY.
Sandwich Bun: Enriched Flour (Wheat Flour, Malted Barley Flour, Niacin, Reduced Iron, Thiamine Mononitrate, Riboflavin, Folic Acid), Water, High Fructose Corn Syrup and/or Sugar, Wheat Gluten, Soybean Oil, Yeast, Salt, Yellow Corn Flower, Colors (Annatto and Turmeric), Contains less than 2% of each of the following: Calcium Propionate (Added as a Preservative), Cultured Wheat Flour, Dextrin, Dough Conditioners (Contains One or More of the Following: Ascorbic Acid [Vitamin C], Calcium Iodate, Calcium Peroxide, Calcium Stearoyl Lactylate, Calcium Sulfate, Datem, Distilled Monoglycerides, Enzymes, Ethoxylated Monoglycerides and Diglycerides, Monoglycerides and/or Diglycerides, Sodium Stearoyl Lactylate [SSL]), Maltodextrin, Natural Flavor, Wheat Flour, Whole Grain Corn Flour, Yeast Foods (Contains One or More of the Following: Ammonium Sulfate, Calcium Carbonate, Monocalcium Phosphate). CONTAINS WHEAT.
American Cheese Slice: Milk, Water, Cream, Sodium Citrate, Salt, Contains Less than 2%: Annatto (Color), Apocarotenal and Beta Carotene (Color), Cheese Culture, Citric Acid, Enzymes, Lactic Acid, Oleoresin Paprika (Color), Sorbic Acid (Preservative), Soy Lecithin, and Sunflower Lecithin. CONTAINS: MILK, SOY.
Crinkle Cut Pickles: Cucumber, Water, Distilled Vinegar, Salt, Calcium Chloride, Sodium Benzoate (Preservative), Lactic Acid, Natural Flavors, Polysorbate 80 and Turmeric.
Ketchup: Tomato Concentrate from Red Ripe Tomatoes, Distilled Vinegar, High Fructose Corn Syrup, Corn Syrup, Salt, Natural Flavoring, Spices, Onion Powder. CONTAINS EGG.
Mustard: Water, Distilled Vinegar, Mustard Seed, Salt, Turmeric (Color), Paprika, Spice.
Sweet Onion: Onion.