Vietnamese Caramel Sauce (Nước Màu)

May 6, 2023

Vietnamese Caramel Sauce (Nước Màu) © kvalifood.com

Nước màu is a savoury caramel sauce used as a base in Vietnamese braised dishes - most famously thịt kho (caramelised pork) and cá kho tộ (caramelised fish in clay pot). It adds deep colour, a bittersweet edge and complexity to anything it touches. Unlike dessert caramel, this is taken deliberately close to burnt - dark reddish brown and smoking - which gives it that characteristic bitter depth that balances against fish sauce and fatty meats. Two ingredients, kept in a jar, used a spoonful at a time.

Ingredients

200 g sugar
1 cup water

Directions

Put the sugar in a small, heavy-bottomed pot over medium-high heat. Let it sit without stirring until the edges start to melt and turn amber.
Once it starts to colour, swirl the pot gently - don’t stir with a spoon or the sugar will crystallise. Keep swirling as the sugar melts unevenly. It will go from golden to amber to dark reddish brown.
Watch it closely once it passes amber. You want it very dark brown and just starting to smoke - this is the bittersweet stage that defines the sauce. It happens fast, so don’t walk away.
As soon as it hits that dark, smoking point, pull the pot off the heat and carefully pour in the water. It will bubble up violently and seize - this is normal.
Put the pot back on low heat and stir until all the hardened caramel dissolves back into the water. You should end up with a thin, dark syrup.
Let it cool completely. Pour into a glass jar and seal.

Notes

How dark is dark enough? Darker than you think. If it looks like maple syrup, it’s not done. You want it almost black with a faint smell of smoke. The bitterness is the point - it’s what makes braised dishes complex rather than just sweet.
The water step is dramatic. The sugar is over 170°C when you add the water. Stand back, use a long-handled pot, and pour the water in steadily. Warm water splashes less than cold.
Keeps for at least a month at room temperature in a sealed glass jar. No refrigeration needed.
Usage: 1-2 tablespoons per braised dish for 4 servings. Start with less - you can always add more.