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Subway Sweet Onion Sauce Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.3 from 29 reviews
  • Author: Elizabeth
  • Prep Time: 5 minutes
  • Cook Time: 0 minutes
  • Total Time: 35 minutes (including chilling time)
  • Yield: 3 servings
  • Category: Sauce
  • Method: No-Cook
  • Cuisine: American

Description

Subway Sweet Onion Sauce is a creamy, tangy, and lightly sweet condiment perfect for sandwiches, wraps, and salads. Made with a blend of mayonnaise, Dijon mustard, apple cider vinegar, honey, and spices, this quick and easy sauce elevates any dish with its rich flavor and smooth texture.


Ingredients

Scale

Sauce Ingredients

  • 1/2 cup mayonnaise
  • 1/4 cup Dijon mustard
  • 1/4 cup apple cider vinegar
  • 2 tbsp honey (or more for extra sweetness)
  • 1 tbsp sugar
  • 1/4 tsp garlic powder
  • 1/4 tsp onion powder
  • 1/4 tsp ground black pepper
  • 1/4 tsp salt
  • 1/4 cup water (adjust for desired consistency)


Instructions

  1. Combine the Ingredients: In a small bowl, whisk together the mayonnaise, Dijon mustard, apple cider vinegar, honey, sugar, garlic powder, onion powder, black pepper, and salt until smooth and well blended.
  2. Adjust Consistency: Gradually add water one tablespoon at a time to the mixture, stirring continuously until you achieve your preferred sauce thickness. Use less water for a thicker sauce or more water for a thinner consistency.
  3. Chill the Sauce: Transfer the sauce to a covered container and refrigerate for at least 30 minutes. This resting time lets the flavors meld and intensify for a richer taste.
  4. Serve: Drizzle the chilled sweet onion sauce over sandwiches, wraps, or salads to add a delicious, tangy sweetness. Store any leftovers in an airtight container in the refrigerator for up to one week.

Notes

  • Adjust the amount of honey for more or less sweetness based on your preference.
  • The sauce can be made a day ahead to enhance the flavor even further.
  • If you prefer a thicker sauce, reduce the amount of water added or omit it entirely.
  • Use fresh ingredients for best flavor, especially fresh honey and quality mayonnaise.
  • Store leftover sauce refrigerated in an airtight container for up to one week.