Description
Recreate the signature Subway Sweet Onion Sauce right at home! With a perfect balance of sweet, tangy, and savory flavors, this homemade sauce is perfect for sandwiches, wraps, salads, and more. Featuring a blend of sugar, vinegars, Dijon mustard, and a hint of onion, it’s a simple yet delicious topping that will elevate your meals. Ready in just 15 minutes, this sauce is a must-have for any fan of the popular Subway sandwich!
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
- In a small saucepan, combine the sugar, water, white vinegar, and red wine vinegar. Stir over medium heat until the sugar dissolves completely.
- Add the finely minced onion and bring the mixture to a simmer. Cook for about 5 minutes to soften the onion and infuse the sauce.
- In a small bowl, create a slurry by mixing the cornstarch with a bit of cold water.
- Slowly pour the cornstarch mixture into the saucepan while stirring. Cook for 2-3 minutes until the sauce thickens.
- Remove from heat and stir in the Dijon mustard until fully combined.
- Let the sauce cool to room temperature before transferring it to a bottle or jar for easy storage.
- Use immediately or refrigerate for up to 2 weeks.
Notes
- For extra spice, add a pinch of cayenne pepper or a splash of hot sauce to the sauce.
- Garlic lovers can add minced garlic while simmering the sauce.
- Honey sweetened: Replace sugar with honey for a more natural sweetness.
- To make this sauce vegan, swap the Dijon mustard with a vegan-friendly variety.
- Prep Time: 5 minutes
- Cook Time: 10 minutes
- Category: Snack
- Method: Stovetop
- Cuisine: American
