Simple Sweet Onion Sauce (Subway Copycat)
Serving Size: 8 ounces
DESCRIPTION
This sweet onion sauce comes together in under 15 minutes with only 6 ingredients! It’s a simple way to add a rich, tangy-sweet flavor to sandwiches, subs, salads, and more. Skip the store-bought options and try this homemade Subway copycat instead!
INGREDIENTS
- 1 cup onion chopped
- ¼ cup water
- ½ cup sugar
- 2 teaspoon white wine vinegar
- ½ teaspoon poppyseeds
- ½ teaspoon salt
- ⅛ teaspoon black pepper
Slurry
- 3 teaspoon potato starch or corn starch
- ¼ cup water
METHOD
- To make the slurry: Whisk together the potato starch and ¼ cup water in a small bowl and keep aside.
- Roughly chop the onions and toss them in the blender with water. Blend till smooth like onion juice.
- Strain the onion juice into a mesh sieve. Use a spoon to slowly push through mostly all the pulp.
- Heat the saucepan with onion juice over low-medium heat and add the remaining ingredients along with the slurry to thicken the sauce.
- Bring sauce to a quick boil and then immediately turn off the heat to let the sauce cool and thicken. Note: Sauce will thicken more once it cools down completely.
NOTES
- Strain the onions: For the smoothest sweet onion sauce, blend and strain the onions into the saucepan.
- Simmer the sauce: To bring the flavors together and thicken the sauce, don’t skip simmering it.
- Make a slurry: To prevent the potato starch from clumping in the sauce, combine it with a small amount of water before adding it in.
NUTRITION
Calories: 60kcal | Carbohydrates: 15g | Protein: 0.3g | Fat: 0.1g | Saturated Fat: 0.02g | Polyunsaturated Fat: 0.1g | Monounsaturated Fat: 0.01g | Sodium: 148mg | Potassium: 39mg | Fiber: 0.4g | Sugar: 13g | Vitamin A: 1IU | Vitamin C: 2mg | Calcium: 9mg | Iron: 0.1mg
Tried this recipe?Let us know how it was!