- Why did the sugar harden?
- If you pour too cold liquid into hot caramel, thermal shock solidifies it instantly. Just keep heating slowly until it melts again.
- How dark should it be?
- Dark amber colour. If too light, it's just sweet; if black and smoking, it's burnt and inedibly bitter.
Vietnamese Caramelised Fish Sauce
'Nước Màu' or caramel cooking sauce is a secret weapon of Vietnamese cuisine. It gives famous 'Kho' dishes (e.g. caramelised pork or fish in clay pots) their beautiful mahogany colour and bittersweet depth. This is not a dessert caramel: sugar is heated almost to blackness (near smoke point) so bitter, roasted notes dominate, perfectly harmonising with salty fish sauce.
Ingredients
50
g
granulated sugar
200
ml
fish stock (or water)
30
ml
fish sauce
10
ml
sesame oil
50
ml
water (to loosen caramel)
2
cloves
garlic
1
g
fresh ginger
1
tsp
chilli flakes
Shopping List (0)
Equipment Needed
- Heavy-bottomed frying pan or saucepan (light interior recommended to check colour)
- Wooden spoon
- Protective gear (apron, as sugar may splatter)
Allergen Information
Fish
Sesame seeds
Instructions
1
✓
Prepare everything to hand, as seconds count with caramel. Finely chop the garlic and ginger.
Tip: 'Mise en place' (preparation) is critical, you won't have time to search when sugar is browning.
2
✓
Spread sugar evenly in a frying pan and start heating over medium heat. Do not stir, just swirl the pan until sugar melts and turns amber.
Tip: Stirring causes crystallisation. Sugar will first liquefy, then start darkening.
3
✓
When sugar is deep brown and fragrant (but not smelling burnt!), remove from heat and carefully pour in 50 ml water. Beware, steam will shoot up!
Tip: This step stops the sugar browning further.
4
✓
Return to heat, add sesame oil, garlic, and ginger. Fry for 1 minute to release aromas.
Tip: Oil-soluble flavours activate this way.
5
✓
Pour in the stock and fish sauce. Sprinkle in the chilli flakes. Simmer on medium heat for 5-8 minutes until the sauce thickens slightly and becomes glossy.
Tip: The saltiness of fish sauce and bittersweet taste of caramel merge now.
Recipe FAQ
Ingredients
- 50 g granulated sugar
- 200 ml fish stock (or water)
- 30 ml fish sauce
- 10 ml sesame oil
- 50 ml water (to loosen caramel)
- 2 cloves garlic
- 1 g fresh ginger
- 1 tsp chilli flakes