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Subway Sweet Onion Sauce


This sweet onion sauce has the perfect balance of sweet and tangy flavors. Use this sauce on your favorite salads or sandwiches. It's a great-tasting alternative to mayonnaise. Try out this sauce on a Cobb style chicken sandwich!

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Rate this recipe 3.9/5 (136 Votes)


  • 2 1/4 cups corn syrup
  • 1/3 cups onion, minced
  • 1/3 cup red wine vinegar
  • 9 teaspoons white vinegar
  • 4 1/2 teaspoons balsamic vinegar
  • 4 1/2 teaspoons brown sugar
  • 4 1/2 teaspoons buttermilk baking mix
  • 1 1/8 teaspoon lemon juice
  • 5/8 teaspoons salt
  • 1/4 teaspoon pepper
  • 1/4 teaspoon garlic powder


Servings 3
Preparation time 2mins
Cooking time 5mins
Adapted from


Step 1

Combine corn syrup, onion, red wine, vinegar, sugar, baking mix, lemon juice, garlic powder, salt and pepper in a saucepan and boil for 3-4 minutes.

Let cool and store refrigerated in an air-tight container.

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