How do you know when stirred sugar is ready?

Watch the color and the bubbles. It goes from clear to brownish-yellow, then thins, turns dark red and finally soy-sauce dark with tiny bubbles. When the tiny bubbles give way to large ones, stop it immediately with boiling water or the meat.

Why does my sugar color taste bitter?

It went a few seconds too far. Lower the heat as soon as it turns brownish-yellow, keep boiling water within reach before you start, and pour it in the moment large bubbles appear.

Can I use white sugar instead of rock sugar?

Yes, use the same weight. Rock sugar gives a brighter, glossier red and melts more evenly, but white sugar works with the water-and-oil method.

How much sugar do I need for red-braised pork?

About 50 g of sugar per 1 kg of meat, adjusted by about 10 g for taste. This recipe uses 50 g sugar, 100 ml water and 100 ml oil.

How to Make Stirred Sugar (Tang Se)

Name: Simple Stir-fried Sugar Crust (Easy Version)
Prep time: 3 min
Cook time: 7 min
Total time: 10 min
Yield: 6 servings
Cuisine: Chinese
Ingredients: Rock Sugar: Produces the most vibrant and bright red color; White Sugar: Must be stir-fried with water and oil, as it melts very slowly without water.; Cotton Candy Sugar: Can be stir-fried without adding water.

By Chef Cannon

Cuisine: Chinese

Servings: 6

How to make stirred sugar (tang se / sugar color) for coloring red-braised dishes such as braised pork. This easy tang se method melts rock sugar with water and oil, then keeps stirring until the syrup turns soy-sauce dark before you add boiling water — about 10 minutes. Difficulty 4/5 (Advanced). Ingredients and step-by-step instructions are below, with notes for home cooking.

At a glance

Time: about 10 min · Colors about 1 kg of meat (about 6 servings) · Difficulty: advanced (timing matters) · ≈ 170 kcal per serving from the sugar and oil

Stirred sugar, or tang se (“sugar color”), is the dark caramel Chinese cooks make to give red-braised pork (hong shao rou) and other braises their glossy red-brown color. Sugar is cooked with water and oil, stirring constantly, through clear syrup, light amber and dark red until it reaches the color of soy sauce. At that point it is stopped instantly with boiling water, or with aromatics and meat. Stop too early and it is only sweet. A few seconds too late and it turns bitter. Rock sugar gives the brightest color. The baseline is 50 g of sugar for every 1 kg of meat.

Difficulty

4 / 5

★★★★☆

Advanced

Estimated Calories

1028 kcal

Ingredients

Sugar (Choose one):
Rock Sugar: Produces the most vibrant and bright red color; must be stir-fried with water and oil, as it melts very slowly without water.
White Sugar: Must be stir-fried with water and oil, as it melts very slowly without water.
Cotton Candy Sugar: Can be stir-fried without adding water.
Do not use too high a flame during the process!!! Electric hobs may have insufficient temperature. If the heat is over, it will taste bitter; if the heat is insufficient, it will be too sweet.

Steps

⚠️ High Energy Warning & Pre-processing:
The final step of making sugar crust (adding water/ingredients) requires continuous and rapid action. Once the sugar crust reaches the critical point, a delay of a few seconds will result in it becoming bitter.
Requirement: Before turning on the heat, place 400ml boiling water and all prepared aromatics (scallion, ginger, garlic) within reach of the stove to ensure they can be grabbed within 1 second.
Turn on the heat and pour 100ml boiling water into the pan.
Pour another 100ml oil into the pan. The shorter the interval between this step and the previous one, the better. At this stage, the pot can be on high or medium heat; if in a hurry, use high heat.
Add rock sugar (If the rock sugar is in large clumps, you can break them beforehand; the better the separation, the better).
Adjust the heat to medium.
Start stirring.
Keep stirring continuously until it turns a brownish-yellow. At this point, turn to low heat.
It will then thin out, turn dark red, and finally turn the color of soy sauce with tiny bubbles appearing. Be ready to execute 'Operation 1' or 'Operation 2'.
The tiny bubbles will gradually disappear, followed by large bubbles appearing. This is when the sugar crust is finished.
You must perform the next step quickly (whichever operation you choose, prepare it in advance and do it fast! Otherwise, the heat will be too high, making the crust bitter). Make your choice based on the dish type and personal taste.
Operation 1: You can add 400ml boiling water directly to cool it down.
Operation 2 (Advanced Flavoring Version): When the sugar liquid turns date-red and starts bubbling dense small bubbles, quickly add the pre-prepared aromatics (scallion, ginger, garlic, Sichuan peppercorns, etc.) and stir-fry. After the aroma blooms (within about 5-10 seconds), you must immediately pour in 400ml boiling water to cool down and stop the reaction. (*Note: If the subsequent recipe

Rate this recipe

Notes

Guan Se (Sugar Crust) is a key technique for coloring red-braised dishes in Chinese cuisine. When done perfectly, it brings a vibrant glossy red color and a unique caramelized flavor. The main ingredient is sugar, which provides energy, but its primary function is to harmonize the dish's appearance and flavor. This easy version of making sugar crust requires some control over heat; novices need to practice more to avoid a bitter or overly sweet result. Total time approx 10 minutes.

Estimated Difficulty: ★★★★
Estimated Calories: 1028 kcal

Calculations:

`Oil`: 100ml
`Boiling Water`: 500ml
`Sugar`: 50g (Approx 15 pieces of single crystal rock sugar, or an equal weight of white sugar. Baseline ratio: 50g sugar per 1000g of meat. You can increase or decrease by 10g based on personal preference.)

If you encounter any issues or find areas for improvement in the process following this guide,

Time and temperature

Medium heat while sugar melts · Turn to low at brownish-yellow · Stop at soy-sauce dark with tiny bubbles, about 175–185 °C on a thermometer · Large bubbles = done, add 400 ml boiling water within seconds

Nutrition

170 kcal · Protein 0 g · Fat 15 g · Carbs 8 g

1 of 6 servings of the finished braise: sugar and oil only, meat not included (e

Substitutes

Rock sugar → white sugar (same weight, slightly duller color)
Water-and-oil method → dry method (white sugar only): faster, burns easily
Oil → lard for a richer braise
No time? → dark soy sauce colors the dish, but without the caramel flavor

Storage

Tang se is best made fresh for each braise. If you stop it with boiling water and do not use it right away, cool the sugar-color liquid and keep it in a clean jar in the fridge for up to 2 weeks; add it to braises by the spoonful.

FAQ

How do you know when stirred sugar is ready?: Watch the color and the bubbles. It goes from clear to brownish-yellow, then thins, turns dark red and finally soy-sauce dark with tiny bubbles. When the tiny bubbles give way to large ones, stop it immediately with boiling water or the meat.
Why does my sugar color taste bitter?: It went a few seconds too far. Lower the heat as soon as it turns brownish-yellow, keep boiling water within reach before you start, and pour it in the moment large bubbles appear.
Can I use white sugar instead of rock sugar?: Yes, use the same weight. Rock sugar gives a brighter, glossier red and melts more evenly, but white sugar works with the water-and-oil method.
How much sugar do I need for red-braised pork?: About 50 g of sugar per 1 kg of meat, adjusted by about 10 g for taste. This recipe uses 50 g sugar, 100 ml water and 100 ml oil.