Vietnamese Caramel Cooking Sauce (Nuoc Mau)

Vietnamese Caramel Sauce (Nước Màu)
Vietnamese Caramel Sauce (Nước Màu)

Vietnamese Caramel Sauce (Nước Màu) is not a sauce you put on ice cream or an ingredient you use in baking. It’s not even sweet. In fact, it’s bitter. Vietnamese caramel sauce is used in many Vietnamese savory caramelized dishes (Món An Khô). Its purpose is to color meat to make it more appetizing.

Nuoc Mau has only two ingredients: white sugar and water. The traditional method of making Nuoc Mau starts off with heating up granulated white sugar by itself or with a bit of oil in a small saucepan until it melts and turns a dark amber color. Water is then added to thin it out. This method, although traditional, has a risk of burning your eye brows off. When you add water to hot sugar (and oil), you get a violent reaction of hot sugar flying in all directions. Hot sugar landing on your face or any exposed skin hurts like a mother, a lesson I unfortunately learned first hand a few times.

Vietnamese Caramel Cooking Sauce (Nuoc Mau): First few minutes of melting sugar (clear liquid)
Vietnamese Caramel Cooking Sauce (Nuoc Mau): First few minutes of melting sugar (clear liquid)

A better approach is mixing sugar with a bit of water and then caramelizing it. The small amount of water will reduce the explosion that is hell when the rest of the water is added at a later stage.

In a pinch when I run out of my homemade caramel sauce, I use thick or dark soy sauce as a substitute. However, once you master your own caramel sauce at home, you’ll never want to use store-bought versions or use other substitutes again.

Vietnamese Caramel Cooking Sauce (Nuoc Mau): After 5-8 minutes the sugar will start to caramelize and turn golden. Continue to cook for another 5-8 minutes until you get a really dark amber color. Finish off with water to thin it out.
Vietnamese Caramel Cooking Sauce (Nuoc Mau): After 5-8 minutes the sugar will start to caramelize and turn golden. Continue to cook for another 5-8 minutes until you get a really dark amber color. Finish off with water to thin it out.
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Vietnamese Caramel Cooking Sauce (Nuoc Mau)


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  • Author: Vicky Pham
  • Total Time: 20 minutes
  • Yield: 1 cup 1x

Description

Vietnamese caramel sauce, used in many savory caramelized dishes (Món Ăn Khô), adds color to meat. Here’s how to make a large batch at home to simplify your Vietnamese cooking.


Ingredients

Units Scale
  • 1 cup granulated white sugar
  • 1/4 cup water + 1/2 cup water

Instructions

  1. Prepare the sugar mixture: Using a light-colored and heavy-bottomed saucepan that’s at least 4 inches in height, add sugar and 1/4 cup water. Give it a quick swirl to even out the sugar.
  2. Caramelize the sugar: Heat on medium-high for about 5-8 minutes. At this point you should start to see the sugar breaking down and changing color. Continue to cook for another 5-8 minutes until the sugar begins smoking and turns a dark amber color. Make sure not to cook for too long or else it will turn black and burnt. However, the sugar may appear black in the saucepan. To accurately gauge the color, examine the caramel sauce on the back of a spoon.
  3. Thin the caramel sauce: Once you get a deep amber color, turn off the heat. Slowly, very slowly, pour 1/2 cup of water into the saucepan. The combination of water and hot sugar will splatter violently so do this part very carefully and slowly.
  4. Cool and store: For safety and cleanliness, I highly recommend transferring the saucepan into an empty sink before adding water. Once you add the water, give it a quick mix. Allow it to cool slightly before transferring it to a glass container. The caramel sauce will continue to thicken as it cools. The sauce can be stored in the pantry for months or years, really. There is no need for refrigeration.
 
  • Prep Time: 5 minutes
  • Cook Time: 15 minutes
  • Category: Sauce
  • Method: Stovetop
  • Cuisine: Vietnamese
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5 responses to “Vietnamese Caramel Cooking Sauce (Nuoc Mau)”

  1. My sugar never turned golden brown. It ran out of water and became a solidchunk of sugar

    1. Hi Geri. Are you using white granulated sugar? You can even use brown sugar. Granulated white, brown or similar sugar should melt and caramelize. However, crystalization can occur when melting sugar and I presume that’s what happened. Unfortunately, crystalization is dependent on factors that we can’t control such as weather and humidity. One trick is to use a bit of corn syrup in the mixture.

  2. I tried to make it, but it crystalized. I dont know what I did wron 🙁 Maybe its because I used a thin-bottomed saucepan and not a heavy-bottomed one?

    1. When you cook the sugar and the water in the beginning leave it and do not stir but rather use your pot to swirl it around to have it cook more evenly once it starts boiling. (In this process, the water evaporates as the sugar cooks) When it gives you the auburn color you want then continue on to the next steps once you turn off the heat.

      I hope this helps!

      quick note: to save it after it crystalizes, add more water and put it back on heat and try again!

  3. My parents made this often but always in the backyard using the side burner on their grill. Thanks for posting this recipe. It’s always "a little bit of this and a little bit of that" when I ask how much of each ingredient.

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