Tulo

Sweet Soy Sauce (Kecap Manis) Recipe

A glass jar of dark, glossy homemade sweet soy sauce with a spoon drizzling a thick ribbon of sauce back into the jar, surrounded by garlic cloves and a star anise pod.
Photo by Adil Khan Marwat on Pexels

Simmering soy sauce with palm sugar breaks the sugar down into a syrupy glaze while the salt in the soy sauce keeps it from tasting flat or one-note sweet, and a few warm spices give it the same depth found in store-bought kecap manis without any artificial flavoring or preservatives.

Prep
5 min
Cook
20 min
Total
25 min
Servings
20

Ingredients

Servings20
  • 1 cup soy sauce
  • 1 cup palm sugar or dark brown sugar, packed
  • 1/4 cup water
  • 2 cloves garlic cloves, smashed
  • 1 whole pod star anise
  • 1 leaf dried bay leaf

Nutrition per serving

Calories
46
Protein
1g
Carbs
11g
Fat
0g

Based on the recipe as written, one serving. Recalculates if you swap an ingredient above. An estimate only, exact values depend on the specific ingredients used.

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Instructions

  1. 1Combine the soy sauce, palm sugar, water, smashed garlic, star anise, and bay leaf in a small saucepan.
  2. 2Bring to a gentle simmer over medium heat, stirring occasionally until the sugar has fully dissolved, about 3 to 4 minutes.
  3. 3Reduce the heat to low and let the sauce simmer uncovered, stirring every few minutes, until it has reduced by about a third and coats the back of a spoon in a thick, glossy layer, 12 to 15 minutes.
  4. 4Remove the pan from the heat and let the sauce cool to room temperature; it will thicken noticeably more as it cools, so don't judge the final consistency while it's still hot.
  5. 5Strain out the garlic, star anise, and bay leaf through a fine-mesh sieve, then pour the sauce into a clean glass jar.
How to Thicken Sauce

Tips & variations

  • Palm sugar gives the most traditional flavor, but dark brown sugar packed tightly into the measuring cup is a close, easy substitute.
  • Add a thin slice of fresh ginger or a small piece of cinnamon stick along with the star anise for a warmer, more complex background flavor.
  • Whisk a spoonful of this sauce with lime juice and sliced chile for a quick dipping sauce, or use it as the base glaze for fried rice and noodle stir-fries.

Storage & reheating

Store the cooled sauce in a sealed jar in the refrigerator for up to 2 months; the high sugar and salt content keeps it stable well beyond most homemade condiments. If it thickens too much to pour straight from the fridge, warm the jar briefly in a bowl of hot water or microwave the sauce in short bursts, stirring between each.

Tips from the Tulo kitchen

  • A wide, shallow saucepan reduces this sauce faster and more evenly than a narrow one, since more surface area is exposed to evaporation.
  • If the sauce firms up like taffy after cooling, it reduced slightly too far; loosen it with a teaspoon of hot water at a time until it pours again.

FAQ

What is the difference between sweet soy sauce and regular soy sauce?

Regular soy sauce is thin, salty, and savory, while sweet soy sauce (kecap manis) is thickened with palm sugar and simmered with spices until it becomes a dark, syrupy glaze that's sweet with only a background of salt.

Can I use this as a 1:1 substitute for kecap manis in a recipe?

Yes, this recipe is a homemade version of kecap manis and can be used the same way, in nasi goreng, mie goreng, marinades, or as a dipping sauce.

Is sweet soy sauce gluten-free?

Only if made with a gluten-free soy sauce or tamari; standard soy sauce contains wheat. Check the label if gluten is a concern.

Why did my sauce turn out grainy instead of smooth?

This usually means the sugar didn't fully dissolve before the mixture started reducing. Stir constantly during the first few minutes of simmering until no sugar crystals remain visible before letting it reduce further.

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