This Sweet Chili Thai Sauce is a perfect blend of sweet, spicy, and tangy flavors that can elevate any dish. Whether you're using it as a dipping sauce, a marinade, or a glaze, this versatile sauce will add a burst of flavor to your meals. It's quick and easy to make, and you'll love having a homemade version on hand.
Some ingredients in this recipe might not be commonly found in every household. Fish sauce is a staple in Thai cuisine and adds a unique umami flavor. Rice vinegar provides a mild acidity that balances the sweetness. If you don't have these items, you can find them in the international aisle of most supermarkets.

Ingredients for Sweet Chili Thai Sauce
Rice vinegar: Provides a mild acidity that balances the sweetness.
Water: Used to dilute the sauce and adjust its consistency.
Sugar: Adds sweetness to the sauce, balancing the spicy and tangy flavors.
Fish sauce: Adds a unique umami flavor typical in Thai cuisine.
Soy sauce: Contributes a salty, savory depth to the sauce.
Cornstarch: Thickens the sauce to the desired consistency when mixed with water.
Garlic: Adds a pungent, aromatic flavor to the sauce.
Red chili flakes: Provides the spicy kick that characterizes this sauce.
Technique Tip for This Recipe
When making this sweet chili Thai sauce, ensure that the cornstarch mixture is thoroughly dissolved in the water before adding it to the saucepan. This will prevent any lumps from forming and ensure a smooth, glossy finish. Additionally, finely mince the garlic to evenly distribute its flavor throughout the sauce.
Suggested Side Dishes
Alternative Ingredients
rice vinegar - Substitute with apple cider vinegar: Apple cider vinegar has a similar acidity and tanginess, making it a good alternative.
water - Substitute with vegetable broth: Vegetable broth can add more depth of flavor compared to plain water.
sugar - Substitute with honey: Honey provides a natural sweetness and a slightly different flavor profile.
fish sauce - Substitute with soy sauce: Soy sauce can provide a similar umami flavor, though it lacks the fishy undertone.
soy sauce - Substitute with tamari: Tamari is a gluten-free alternative that offers a similar taste to soy sauce.
cornstarch - Substitute with arrowroot powder: Arrowroot powder is a good thickening agent and works similarly to cornstarch.
garlic - Substitute with garlic powder: Garlic powder can be used when fresh garlic is not available, though the flavor will be slightly different.
red chili flakes - Substitute with sriracha: Sriracha can provide a similar heat and adds a bit of extra flavor.
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How to Store or Freeze This Recipe
Allow the sweet chili Thai sauce to cool completely at room temperature before storing. This helps prevent condensation, which can dilute the sauce and affect its flavor.
Transfer the cooled sauce into a clean, airtight glass jar or container. Glass is preferred as it doesn't retain odors and flavors like plastic might.
Label the jar with the date of preparation. This ensures you keep track of its freshness and use it within a safe timeframe.
Store the jar in the refrigerator. The sweet chili Thai sauce can last up to two weeks when properly refrigerated.
For longer storage, consider freezing the sauce. Pour the sauce into ice cube trays for easy portioning. Once frozen, transfer the cubes to a freezer-safe bag or container.
When ready to use, thaw the desired amount of sauce in the refrigerator overnight or at room temperature for a few hours. Avoid microwaving to preserve the sauce's texture and flavor.
If the sauce separates after thawing, give it a good stir or whisk to reincorporate the ingredients.
Always use a clean spoon or utensil when scooping out the sauce to avoid contamination and extend its shelf life.
For an extra burst of flavor, consider adding freshly chopped cilantro or a squeeze of lime juice just before serving.
How to Reheat Leftovers
Stovetop Method: Pour the sweet chili Thai sauce into a small saucepan. Heat over medium-low heat, stirring occasionally, until it reaches your desired temperature. This method ensures even heating and preserves the sauce's texture and flavor.
Microwave Method: Transfer the sauce to a microwave-safe bowl. Cover with a microwave-safe lid or plastic wrap (leaving a small vent). Heat on medium power in 30-second intervals, stirring in between, until warm. Be cautious not to overheat, as this can alter the sauce's consistency.
Double Boiler Method: Fill a pot with a couple of inches of water and bring to a simmer. Place a heatproof bowl containing the sweet chili Thai sauce over the pot, ensuring the bottom of the bowl does not touch the water. Stir occasionally until the sauce is warmed through. This gentle heating method helps maintain the sauce's delicate balance of flavors.
Oven Method: Preheat your oven to 300°F (150°C). Pour the sauce into an oven-safe dish and cover with foil. Heat for about 10-15 minutes, stirring halfway through. This method is ideal if you're already using the oven for other dishes.
Immersion Circulator Method: If you have a sous vide setup, place the sauce in a vacuum-sealed bag or a ziplock bag and submerge it in a water bath set to 140°F (60°C). Heat for about 20 minutes. This method ensures precise temperature control and prevents overcooking.
Best Tools for This Recipe
Saucepan: A medium-sized saucepan is essential for combining and heating the ingredients to create the sauce.
Whisk: A whisk is used to mix the cornstarch mixture into the sauce, ensuring it thickens smoothly without lumps.
Measuring cups: Accurate measuring cups are necessary to measure out the rice vinegar, water, and sugar.
Measuring spoons: Measuring spoons are needed for precise measurements of fish sauce, soy sauce, and cornstarch.
Garlic press: A garlic press helps to efficiently mince the garlic cloves.
Mixing bowl: A small mixing bowl is useful for combining the cornstarch with water before adding it to the sauce.
Jar: A jar with a lid is ideal for storing the finished sauce in the refrigerator.
Stove: A stove is necessary to heat the saucepan and cook the sauce.
Spatula: A spatula can be useful for stirring and scraping down the sides of the saucepan.
How to Save Time on Making This Recipe
Prepare ingredients ahead: Measure and chop garlic and mix cornstarch with water before starting.
Use pre-minced garlic: Save time by using store-bought minced garlic instead of mincing it yourself.
Batch cooking: Double the recipe and store extra sweet chili Thai sauce for future use.
Simmer while multitasking: Let the sauce simmer while you prepare other parts of your meal.
Quick cooling: Pour the hot sauce into a shallow dish to cool faster before storing.

Sweet Chili Thai Sauce Recipe
Ingredients
Main Ingredients
- ½ cup Rice vinegar
- ½ cup Water
- ½ cup Sugar
- 2 tablespoon Fish sauce
- 1 tablespoon Soy sauce
- 1 tablespoon Cornstarch mixed with 2 tablespoon water
- 2 cloves Garlic minced
- 1 teaspoon Red chili flakes
Instructions
- In a saucepan, combine rice vinegar, water, sugar, fish sauce, soy sauce, garlic, and red chili flakes. Bring to a boil.
- Reduce heat and simmer for 5 minutes.
- Add cornstarch mixture and whisk until thickened, about 2 minutes.
- Remove from heat and let cool. Store in a jar in the refrigerator.
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