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Subway Sweet Onion Sauce

Posted on February 28, 2025

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  • Subway Sweet Onion Sauce Recipe
    • Ingredients:
    • Instructions:
  • 1. Combine ingredients:
  • 2. Thicken the sauce:
  • 3. Add mustard:
  • 4. Cool and store:
  • Tips for Success:

Subway Sweet Onion Sauce Recipe

If you love the tangy, sweet flavor of Subway’s Sweet Onion Sauce, you’re in for a treat! This homemade version is quick, easy, and perfect for drizzling over sandwiches, wraps, or salads.


Ingredients:

  • 1 cup sugar
  • 1/2 cup water
  • 6 tablespoons white vinegar
  • 1 1/2 tablespoons red wine vinegar
  • 1/2 tablespoon finely minced onion
  • 1 tablespoon cornstarch
  • 2 teaspoons Dijon mustard

Instructions:

1. Combine ingredients:

  • In a medium saucepan, combine the sugar, water, white vinegar, red wine vinegar, and finely minced onion. Stir to combine and bring the mixture to a gentle simmer over medium heat.

2. Thicken the sauce:

  • In a small bowl, mix the cornstarch with a little bit of cold water (about 2 tablespoons) to create a slurry.
  • Slowly whisk the slurry into the simmering sauce while continuously stirring. Let the mixture simmer for 2-3 minutes until it thickens to a syrupy consistency.

3. Add mustard:

  • Once the sauce has thickened, whisk in the Dijon mustard. Stir until everything is well combined.

4. Cool and store:

  • Remove the saucepan from heat and allow the sauce to cool to room temperature. It will continue to thicken slightly as it cools.
  • Once cooled, transfer the sauce to a jar or airtight container. Store in the refrigerator for up to 1-2 weeks.

Tips for Success:

  • Adjust sweetness: You can adjust the amount of sugar to your liking depending on how sweet you want the sauce to be.
  • Consistency: If the sauce gets too thick after cooling, you can thin it out with a small amount of water when reheating.
  • Flavor boost: Feel free to experiment by adding a pinch of garlic powder, onion powder, or a dash of cayenne for extra flavor!

This Subway Sweet Onion Sauce is a delicious addition to your homemade sandwiches or salads and adds that perfect balance of sweetness and tang! Enjoy!

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