Description
Love Subway’s sweet onion sauce? Now you can make it at home with simple pantry ingredients. This sweet and tangy sauce is perfect for sandwiches, wraps, marinades, and more. It takes just 10 minutes to prepare and stores well for up to two weeks.
Ingredients
Scale
- ½ cup white sugar
- ¼ cup white vinegar
- ¼ cup water
- 1 tbsp cornstarch
- 1 tbsp soy sauce
- 1 tbsp onion powder
- 1 tsp garlic powder
- 1 tsp mustard powder
- ½ tsp celery salt
- ½ tsp black pepper
- ¼ tsp paprika
Instructions
- In a saucepan, whisk together sugar, vinegar, water, soy sauce, and spices over medium heat.
- In a separate bowl, mix cornstarch with 1 tbsp of water to create a slurry.
- Slowly add the slurry to the saucepan, stirring constantly.
- Simmer for 5 minutes, stirring frequently, until thickened.
- Let the sauce cool, then transfer to a jar or squeeze bottle.
- Refrigerate for at least one hour before use for the best flavor.
Notes
- Adjust sweetness by adding more or less sugar.
- If the sauce is too thick, add a splash of water.
- The flavor deepens after resting in the fridge.
- Prep Time: 5 minutes
- Cook Time: 5 minutes
- Category: Sauce & Condiments
- Method: Stovetop
- Cuisine: American
Nutrition
- Calories: 42
- Sugar: 8g
- Sodium: 191mg
- Carbohydrates: 9g
- Fiber: 1g
- Protein: 1g
Keywords: Homemade sweet onion sauce, Subway copycat sauce, DIY sweet onion dressing, best sandwich sauce recipe