Thai Sweet Chili Sauce

Skip the bottled stuff. This homemade Thai sweet chili sauce comes together in one saucepan and tastes fresher and more complex than anything from a jar.

Rice vinegar and sugar build the sweet-sour base, while fish sauce adds the salty, funky depth that makes Thai condiments so addictive. Plum sauce contributes a fruity richness, and a touch of tomato paste gives it body and a warm reddish color. Fresh serrano chili plus red chili sauce deliver heat from two angles: the sharp, immediate burn of fresh pepper and the rounder warmth of the prepared sauce.

A tiny amount of flour mixed with water thickens the sauce slightly as it simmers, so it clings to spring rolls and grilled meats instead of running off. Four minutes of simmering is all it takes to bring everything together.

Kitchen Tips

• Use fresh lime juice instead of lemon for a more authentically Thai flavor profile.
• The sauce thickens more as it cools, so don’t worry if it looks thin straight off the stove.
• Adjust the serrano chili to your heat preference. Remove the seeds for milder sauce, or add a second pepper for serious fire.
• Keeps in the fridge for up to 3 days. Bring to room temperature before serving for the best flavor.

Variations

• Add a tablespoon of minced cilantro after cooking for a fresh herbal finish.
• Stir in crushed roasted peanuts for a sauce that doubles as a satay dip.
• Replace the serrano with Thai bird chilies for more authentic, concentrated heat.