Tulo

Palm Sugar Coconut Sauce Recipe

Simmering coconut milk with real palm sugar (not white sugar) gives the sauce a caramel-like depth and faint smokiness that granulated sugar can't match, and a small pinch of salt sharpens the sweetness so it doesn't taste flat over rice or fruit.

Prep
5 min
Cook
10 min
Total
15 min
Servings
6

Ingredients

Servings6
  • 1 cup full-fat coconut milk (canned)
  • 1/2 cup palm sugar, grated or chopped
  • 1/4 tsp salt
  • 1 tsp rice flour or cornstarch (for slurry)
  • 1 leaf pandan leaf, knotted (optional)

Nutrition per serving

Calories
167
Protein
2g
Carbs
23g
Fat
8g

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. 1Chop or grate the palm sugar into small pieces if it isn't already loose; dense blocks melt unevenly and can scorch on the bottom of the pan.
  2. 2In a small saucepan, combine the coconut milk, palm sugar, and pandan leaf (if using) over medium-low heat.
  3. 3Stir slowly and constantly as the mixture heats, until the palm sugar has fully dissolved and the sauce is smooth, 4-5 minutes. Do not let it come to a rolling boil.
  4. 4In a small bowl, whisk the rice flour or cornstarch with 1 tablespoon of water to make a slurry, then stir it into the saucepan.
  5. 5Simmer gently, stirring, until the sauce thickens enough to coat the back of a spoon, another 2-3 minutes.
  6. 6Remove from heat, stir in the salt, and discard the pandan leaf. Let the sauce cool for 10-15 minutes before serving; it will thicken further as it cools.

Tips & variations

  • If the palm sugar comes in a hard block, soften it by microwaving briefly or letting it sit in the warming coconut milk for a minute before stirring, it breaks apart much easier that way.
  • No pandan leaf on hand? The sauce is still good without it, just slightly less floral.
  • For a saltier, more savory version closer to what's served over mango sticky rice in Thailand, increase the salt to 1/2 teaspoon.
  • Swap in coconut cream in place of half the coconut milk for an even richer, thicker sauce.

Storage & reheating

Store the cooled sauce in an airtight container in the refrigerator for up to 5 days. It will firm up when chilled; rewarm gently over low heat or in short microwave bursts, stirring in a teaspoon of water if it's too thick to pour.

Tips from the Tulo kitchen

  • Taste the sauce before adding the full amount of salt, some palm sugar brands are already fairly mineral-forward and need less.
  • If the sauce seizes or looks grainy, it usually means the heat was too high; strain it through a fine mesh sieve to smooth it back out.

FAQ

What is palm sugar, and can I substitute regular sugar?

Palm sugar is made from the boiled-down sap of palm trees (often coconut or sugar palms) and has a caramel, slightly smoky flavor unlike neutral white sugar. Light or dark brown sugar is the closest substitute if palm sugar isn't available, though the flavor will be milder.

Why did my coconut sauce turn oily or split?

This happens when the coconut milk is boiled too hard or too long, which separates the fat from the liquid. Keep the heat at medium-low and stir often, and remove the sauce from heat as soon as it coats a spoon.

What do I serve this sauce with?

It's the traditional topping for Thai mango sticky rice, but it also works well over pancakes, waffles, vanilla ice cream, or fresh tropical fruit like banana or pineapple.

Can I make this sauce without a thickener?

Yes. Simmer the coconut milk and palm sugar a few extra minutes to reduce it naturally, though the sauce will be thinner and won't hold as well on top of sticky rice.

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