Subway Sweet Onion Sauce Recipe

The Subway Sweet Onion Sauce is a fan favorite, known for its sweet and tangy flavor that adds the perfect finishing touch to any sandwich. This iconic sauce is a perfect balance of sweetness with a hint of savory, making it an irresistible topping for everything from cold cuts to grilled chicken. If you’ve ever wondered how to recreate this delicious sauce at home, you’re in luck! This recipe allows you to enjoy that same bold and tangy flavor, but with fresh ingredients that you can prepare at home.

Not only is this homemade version simple to make, but it’s also incredibly versatile. Whether you’re using it as a dip, a salad dressing, or a sandwich condiment, this Sweet Onion Sauce is sure to enhance any meal. It’s a great way to bring the classic Subway taste into your own kitchen without any mystery ingredients. So grab your mixing bowl and prepare for a delicious homemade sauce that will become a staple in your culinary repertoire.

Why You’ll Love This Recipe

1. Easy to Make

This Sweet Onion Sauce is simple to prepare, requiring only a few ingredients that you likely already have in your pantry.

2. Customizable Flavor

You can easily adjust the sweetness or tanginess of the sauce to your liking, making it a versatile condiment for a variety of dishes.

3. Perfect for Sandwiches and Wraps

The sauce brings a burst of flavor to sandwiches, wraps, or even as a topping for burgers and grilled chicken.

4. No Preservatives or Additives

When you make it at home, you control the quality of the ingredients, avoiding preservatives and artificial flavors found in store-bought versions.

5. Great for Meal Prep

This sauce can be made in advance and stored in the fridge, making it a convenient addition to meal prep for the week.

Ingredients

  • Mayonnaise
  • Sweet onion
  • Apple cider vinegar
  • Honey
  • Dijon mustard
  • Salt
  • Garlic powder
  • Ground black pepper
  • Water (to adjust consistency)

Variations

  • Add spice: If you like a little heat, try adding a pinch of cayenne pepper or a dash of hot sauce to give the sauce a spicy kick.
  • Use Greek yogurt: For a lighter version, you can substitute the mayonnaise with Greek yogurt to reduce the fat content while still maintaining a creamy texture.
  • Herb-infused sauce: Add some finely chopped fresh herbs like parsley or chives to introduce additional layers of flavor.
  • Use white vinegar: You can replace apple cider vinegar with white vinegar if that’s what you have on hand for a slightly sharper flavor.

How to Make the Recipe

Step 1: Blend the Ingredients

In a medium-sized bowl, combine mayonnaise, finely chopped sweet onion, apple cider vinegar, honey, Dijon mustard, garlic powder, and ground black pepper. Whisk until smooth and well-blended.

Step 2: Adjust Consistency

If the sauce is too thick, add a little water (1 tablespoon at a time) to reach your desired consistency. Whisk to combine.

Step 3: Taste and Adjust Seasoning

Taste the sauce and adjust the seasoning as needed. You can add more honey for sweetness, more vinegar for tang, or additional garlic powder for extra flavor.

Step 4: Chill and Serve

Refrigerate the sauce for at least 30 minutes to allow the flavors to meld together. Serve it as a condiment for sandwiches, wraps, or even as a dip for fries or veggies.

Tips for Making the Recipe

  • Use a food processor: For an even smoother consistency, blend the ingredients in a food processor. This will help finely chop the sweet onions and ensure a creamy texture.
  • Make it in advance: This sauce actually improves in flavor after sitting for a few hours, so making it ahead of time is a great idea.
  • Use fresh onions: Fresh sweet onions provide the best flavor, but you can also use onion powder if you’re short on time or prefer a less pungent taste.
  • Adjust sweetness: If you prefer a sweeter sauce, increase the honey or even use brown sugar to create a richer flavor.

How to Serve

This Sweet Onion Sauce is incredibly versatile. Use it as a topping for sandwiches, wraps, and burgers, or drizzle it over grilled chicken or roasted vegetables for an extra burst of flavor. It can also serve as a dipping sauce for fries, chicken nuggets, or even fresh vegetables. The possibilities are endless!

Make Ahead and Storage

Storing Leftovers

Store any leftover Sweet Onion Sauce in an airtight container in the refrigerator for up to 1 week. Be sure to give it a good stir before using, as the ingredients may separate slightly over time.

Freezing

This sauce is not recommended for freezing, as the texture may change once thawed. It’s best enjoyed fresh or stored in the fridge for a short period.

Reheating

There’s no need to reheat this sauce, as it is served cold. Simply give it a stir if it has been sitting for a while to reincorporate the ingredients.

FAQs

1. Can I use regular onions instead of sweet onions?

Yes, you can use regular onions, but sweet onions are ideal for this sauce as they offer a milder, sweeter flavor. If using regular onions, you might want to sauté them to soften their flavor.

2. Can I make this sauce without mayonnaise?

Yes, you can use Greek yogurt as a substitute for mayonnaise if you prefer a lighter or tangier option.

3. How do I adjust the sweetness of the sauce?

To make the sauce sweeter, simply add more honey or adjust the amount of sugar to your taste. You can also add a small amount of maple syrup for a different kind of sweetness.

4. Can I use another type of mustard?

Dijon mustard is traditional, but you can substitute it with yellow mustard or spicy mustard if that’s what you have on hand.

5. Can I use a blender instead of whisking?

Yes, you can blend all the ingredients in a blender for a smooth, creamy texture if you prefer a perfectly uniform consistency.

6. Can I use a different type of vinegar?

Yes, apple cider vinegar gives the sauce a mild tang, but you can substitute it with white wine vinegar or rice vinegar if you prefer a more subtle flavor.

7. How can I thicken the sauce?

If the sauce is too thin, you can add more mayonnaise or a small amount of cornstarch (mixed with water) to thicken it up.

8. Can I make this sauce spicy?

Absolutely! Add a pinch of cayenne pepper, red pepper flakes, or hot sauce to give the sauce a spicy kick.

9. Can I double the recipe?

Yes, you can easily double or even triple the recipe if you’re serving a large group or want to have extra sauce on hand.

10. How long can I store this sauce in the fridge?

This Sweet Onion Sauce will stay fresh for about 1 week when stored properly in an airtight container in the fridge.

Conclusion

The Subway Sweet Onion Sauce is a beloved condiment that adds a delightful tangy-sweet flavor to any dish. With this easy recipe, you can recreate the same irresistible taste in the comfort of your own kitchen. Whether you’re using it on sandwiches, wraps, or as a dip, this sauce will elevate your meals with its perfect balance of sweetness and savory goodness. Plus, it’s quick to make, customizable to your taste, and keeps well for future use. Enjoy the homemade version of this iconic sauce anytime you crave that Subway flavor!

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Subway Sweet Onion Sauce Recipe


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  • Author: Lina
  • Total Time: 10 minutes
  • Yield: About 1 cup of sauce 1x
  • Diet: Vegetarian

Description

This Subway Sweet Onion Sauce is a tangy and sweet dressing that perfectly complements your favorite sandwiches, especially those with chicken, turkey, or veggies. With a combination of sweet and savory flavors, this homemade version mimics the iconic Subway sauce, bringing the classic sandwich experience right to your kitchen. It’s easy to make, and it adds the perfect finishing touch to your subs!


Ingredients

Scale
  • 1/2 cup mayonnaise
  • 1/4 cup sweet onion, finely chopped
  • 1 tablespoon Dijon mustard
  • 1 tablespoon white vinegar
  • 1 tablespoon sugar
  • 1 teaspoon lemon juice
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon onion powder
  • Salt and pepper, to taste

Instructions

  • Prepare the sauce base: In a medium mixing bowl, combine the mayonnaise, Dijon mustard, white vinegar, and lemon juice. Stir until well blended.
  • Add sweetness and flavor: Add the finely chopped sweet onion, sugar, garlic powder, and onion powder to the mixture. Stir everything together to combine.
  • Season the sauce: Taste the sauce and adjust the seasoning with salt and pepper as needed. If you prefer a sweeter sauce, add a bit more sugar.
  • Chill and serve: Refrigerate the sauce for at least 30 minutes before serving to allow the flavors to meld together.
  • Enjoy: Use the sauce to drizzle on your favorite sandwich, wrap, or salad for that perfect Subway-inspired flavor.

Notes

  • For a smoother sauce, you can blend the ingredients in a food processor or blender to break down the onion into a finer texture.
  • You can adjust the sweetness by varying the amount of sugar.
  • Store the sauce in an airtight container in the refrigerator for up to a week.
  • This sauce is also great as a dipping sauce for chicken tenders, wraps, or salads.
  • Prep Time: 10 minutes
  • Cook Time: 0 minutes (since no cooking is required)
  • Category: Condiments, Sauce
  • Method: No-cook
  • Cuisine: American

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