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Subway Sweet Onion Sauce Recipe

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This Subway-inspired sweet onion sauce is perfect for drizzling on your sandwiches, wraps, or salads! Packed with the perfect balance of sweet and tangy flavors, it’s a must-try for any Subway fan.

Ingredients

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  1. 1 cup sugar
  2. 1/2 cup water
  3. 6 tablespoons white vinegar
  4. 1 1/2 tablespoons red wine vinegar
  5. 1/2 tablespoon finely minced onion
  6. 1 tablespoon cornstarch
  7. 2 teaspoons Dijon mustard
  8. 2 teaspoons mustard powder
  9. 1 teaspoon poppy seeds
  10. 1/2 teaspoon sesame oil
  11. 1/2 teaspoon onion powder
  12. 1/2 teaspoon salt
  13. 1/4 teaspoon garlic powder
  14. 1/4 teaspoon celery seed
  15. 1/4 teaspoon paprika
  16. 1/4 teaspoon black pepper

Instructions

  • Add all the ingredients to a saucepan and whisk thoroughly to combine.
  • Bring the mixture to a boil, whisking constantly to prevent clumping.
  • Let it boil for 5 minutes, then reduce the heat to a simmer. Continue whisking as it simmers for an additional 5 minutes.
  • Once the sauce thickens, remove it from heat and let it cool completely.
  • Transfer the sauce to an airtight container and store it in the refrigerator for up to one week.

Notes

  • This sauce can be made ahead of time and stored in the fridge for up to a week.
  • Adjust the sweetness or tanginess by modifying the sugar or vinegar to your preference.

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