Sweet chili Thai sauce is a versatile and flavorful condiment that adds a perfect balance of sweetness and heat to any dish. This homemade version is easy to make and can be used as a dipping sauce, marinade, or glaze. It's a great way to elevate your meals with a touch of Thai cuisine.
Some ingredients in this recipe might not be commonly found in every household. Rice vinegar is a mild and slightly sweet vinegar that is essential for authentic Asian flavors. Red chili flakes provide the heat and can be adjusted to your spice preference. Make sure to pick these up at your local supermarket if you don't already have them in your pantry.

Ingredients for Sweet Chili Thai Sauce
Water: The base liquid for the sauce, helping to dissolve the other ingredients and create the desired consistency.
Rice vinegar: Adds a mild acidity and sweetness, essential for authentic Thai flavor.
Sugar: Provides the sweetness that balances the heat from the chili flakes.
Soy sauce: Adds a salty, umami depth to the sauce.
Cornstarch: Mixed with water to create a slurry that thickens the sauce.
Garlic: Minced garlic adds a pungent, aromatic flavor.
Red chili flakes: Provides the heat and spice, adjustable to your preference.
Technique Tip for Perfecting This Sauce
When making this sweet chili Thai sauce, ensure that you finely mince the garlic to release its full flavor into the sauce. Additionally, when creating the cornstarch slurry, mix it thoroughly to avoid any lumps, which can affect the smoothness of the final product. For a more intense heat, you can adjust the amount of red chili flakes to suit your taste.
Suggested Side Dishes
Alternative Ingredients
water - Substitute with chicken broth: Adds a richer flavor to the sauce.
rice vinegar - Substitute with apple cider vinegar: Provides a similar tangy flavor with a slightly different undertone.
sugar - Substitute with honey: Adds sweetness with a more complex flavor profile.
soy sauce - Substitute with tamari: Offers a similar umami flavor and is gluten-free.
cornstarch - Substitute with arrowroot powder: Acts as a thickening agent and is a good alternative for those avoiding corn.
minced garlic - Substitute with garlic powder: Provides a similar garlic flavor, though less fresh.
red chili flakes - Substitute with sriracha: Adds heat and a bit of extra flavor complexity.
Alternative Recipes Similar to This Thai Sauce
How to Store or Freeze This Thai Sauce
Allow the sweet chili Thai sauce to cool completely before storing. This helps prevent condensation, which can dilute the sauce and affect its flavor.
Transfer the cooled sauce into a clean, airtight container. Glass jars with tight-fitting lids or BPA-free plastic containers work well.
Label the container with the date of preparation. This ensures you keep track of its freshness and use it within a safe timeframe.
Store the sauce in the refrigerator. It will keep well for up to two weeks, maintaining its vibrant flavor and consistency.
For longer storage, consider freezing the sauce. Pour it into freezer-safe containers or ice cube trays for easy portioning. Once frozen, transfer the cubes to a resealable plastic bag.
When ready to use, thaw the sauce in the refrigerator overnight. For quicker thawing, place the container in a bowl of cold water.
If the sauce separates or thickens too much after thawing, gently reheat it in a saucepan over low heat, stirring occasionally until it reaches the desired consistency.
Avoid refreezing the sauce once it has been thawed, as this can compromise its texture and flavor.
How to Reheat Leftovers
- Gently reheat the sweet chili Thai sauce on the stovetop over low heat. Stir occasionally to ensure even heating and prevent sticking. This method helps maintain the sauce's consistency and flavor.
- Use a microwave-safe bowl to reheat the sauce in the microwave. Cover the bowl with a microwave-safe lid or a damp paper towel to avoid splatters. Heat in 20-second intervals, stirring in between, until the sauce is warmed through.
- For a quick and even reheating, place the sauce in a heatproof bowl and set it over a pot of simmering water (double boiler method). Stir occasionally until the sauce is heated to your liking. This gentle method prevents the sauce from burning or separating.
- If you're using the sauce as a glaze for grilled meats or vegetables, you can brush it directly onto the food during the last few minutes of cooking. This not only reheats the sauce but also allows it to caramelize slightly, enhancing its flavor.
Essential Tools for Making This Thai Sauce
Saucepan: Used to combine and heat the ingredients, allowing them to meld together and thicken into a sauce.
Measuring cups: Essential for accurately measuring the water, rice vinegar, and sugar to ensure the correct balance of flavors.
Measuring spoons: Necessary for measuring the soy sauce, minced garlic, and red chili flakes to maintain the recipe's proportions.
Small bowl: Used to mix the cornstarch with water to create a slurry before adding it to the saucepan.
Whisk: Helps to mix the ingredients thoroughly and to incorporate the cornstarch slurry smoothly into the sauce.
Stirring spoon: Useful for stirring the sauce as it simmers to prevent it from sticking to the bottom of the saucepan.
Airtight container: Ideal for storing the cooled sauce in the refrigerator, keeping it fresh and ready for future use.
Time-Saving Tips for Making This Sauce
Prepare ingredients in advance: Measure and chop all ingredients like garlic and red chili flakes before starting to cook.
Use pre-minced garlic: Save time by using store-bought minced garlic instead of mincing it yourself.
Batch cook: Double or triple the recipe and store extra sauce in the refrigerator for future use.
Quick dissolve cornstarch: Mix cornstarch with cold water in a small jar and shake well to create a smooth slurry quickly.
Simmer with a lid: Cover the saucepan while simmering to speed up the thickening process.

Sweet Chili Thai Sauce Recipe
Ingredients
Main Ingredients
- 1 cup Water
- ½ cup Rice Vinegar
- ½ cup Sugar
- 2 tablespoon Soy Sauce
- 2 tablespoon Cornstarch mixed with 2 tablespoon water
- 1 tablespoon Garlic minced
- 1 tablespoon Red Chili Flakes
Instructions
- In a saucepan, combine water, rice vinegar, sugar, soy sauce, garlic, and red chili flakes. Bring to a boil over medium heat.
- In a small bowl, mix cornstarch with 2 tablespoon water to create a slurry. Add the slurry to the saucepan.
- Reduce heat and simmer for about 5 minutes, or until the sauce thickens to your desired consistency.
- Remove from heat and let cool. Store in an airtight container in the refrigerator.
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