Stir-fry & noodle saucesGluten-freeDairy-free

Nước Chấm

The Vietnamese dipping sauce of fish sauce, lime juice, sugar and water with raw garlic and bird's eye chilli. Sweet, sour, salty and light.

makes 18 cubes, about 8p each

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Illustration of a bowl of Nước Chấm
Time
15 min15 min prep
Makes
18 cubes
Cost per cubePer cube
8p
Calories per cubeCalories
26 kcal
A serving
2 cubes
Spice

Ingredients

Batch size
  • 100gcaster sugar
  • 300mlwater, warm
  • 100mlfish sauce
  • 100mllime juice, from about 4 limes
  • 30mlrice vinegar
  • 4 cloves (20g)garlic, finely chopped
  • 3 (6g)bird's eye chillies, finely chopped

Allergens: Fish. Check the labels on stock cubes, sauces and pastes, as brands vary.

Method

  1. Step 1: Stir the sugar into the warm water until it has completely dissolved.
  2. Step 2: Stir in the fish sauce, lime juice and rice vinegar.
  3. Step 3: Taste: it should be equally sweet, sour and salty, and mild enough to sip from a spoon. Add a little more water, lime or sugar to balance it.
  4. Step 4: Stir in the garlic and chillies and leave for 10 minutes for the garlic to flavour the sauce.
  5. Step 5: Stir well so each cube gets garlic and chilli, pour into 30ml trays and freeze.
Nutrition (estimated)
kcalproteincarbsfatfibresalt
Per cube260.4g6g0g0.1g1.28g
Per 2 cubes520.8g12g0g0.2g2.56g

Cook’s notes

  • Warm water from the kettle dissolves the sugar quickly; let it cool a little before adding the lime.
  • Add shredded carrot when you serve rather than before freezing, so it stays crunchy.

Use it for

  • Dipping sauce for spring rolls or summer rolls · 2 cubes
  • Dressing for a noodle bowl with grilled meat or tofu · 3 cubes
  • Dressing for a crunchy slaw or rice salad · 2 cubes
  • Spooned over grilled pork, chicken or fish · 2 cubes

Freeze, reheat and serve

Freeze
Cool it within two hours, freeze it in 30ml ice-cube trays, then bag and label the cubes. It keeps for 4 months.
Use from frozen
Thaw in a small bowl for 30 minutes, or warm for 20 seconds in the microwave, and stir. Never refreeze thawed cubes.
A portion
2 cubes is a serving: about 52 kcal.

Nước Chấm questions

Can I make it without fish sauce?

Use 60ml light soy sauce and 40ml extra water in place of the fish sauce. It tastes different but keeps the same sweet, sour and salty balance, and becomes vegan; the page's allergen labels stay as written.

Why dissolve the sugar first?

Sugar dissolves slowly in cold lime juice and fish sauce, which leaves the sauce grainy and hard to balance. Dissolving it in warm water first means you can taste it accurately.

Can I use bottled lime juice?

Fresh lime juice tastes much brighter and is worth the squeezing. Bottled works at a push; add it a little at a time as it can be sharper.

Updated . Nutrition, costs and yields are estimates.

Cooking Nước Chấm