Peanut Sauce (Nuoc Leo)

Nuoc leo is the Vietnamese peanut sauce you find alongside spring rolls and grilled meats at restaurants, but this traditional version has a depth most Western peanut sauces can’t touch. The secret ingredient is chicken livers, sauteed until deeply caramelized and ground into a thick paste that gives the sauce a savory, almost meaty richness.

Crunchy peanut butter and tahini build the nutty base, while dark soy sauce and sugar create that sweet-salty balance Vietnamese cooking does so well. A bit of fresh chili brings heat you can dial up or down.

Don’t be shy about browning those livers. You want them very dark, almost charred at the edges. That deep color translates directly into flavor depth. Once ground, you won’t taste “liver” at all, just a complex umami backbone.

Add water gradually while simmering to reach your preferred thickness. It should coat a spoon but still flow easily for dipping.

Kitchen Tips

• Grind the liver and garlic paste as smooth as possible; a mortar and pestle works best for this small quantity
• Keeps in the fridge for up to two weeks, so make a double batch
• Bring to room temperature before serving for the best consistency and flavor

Variations

• Replace chicken livers with 2 tablespoons of tamarind pulp for a tart, vegetarian version (a traditional alternative)
• Add a tablespoon of hoisin sauce for extra sweetness and body
• Use creamy peanut butter for a smoother, more refined sauce