
Braised Potatoes in Soy Sauce (红烧土豆)
红烧土豆 · hong shao tu dou
Hong shao potatoes are what a Chinese household cooks when there is no meat in the fridge but there are always potatoes. The technique is identical to red-braised pork — caramelise, braise, reduce — except the potato swallows the sauce and turns glossy and dense. My mother called it the dish that saved dinner more times than she could count.
Recipe author: HǎoWèi Test Kitchen
Home-cooking research team
Reviewed by HǎoWèi editorial team · Last updated 2026-08-29
Ingredients
- potatoes, peeled and cut into 3 cm chunks土豆(去皮切 3 厘米块)🛒 local500 g
- light soy sauce生抽🏮 asian2 tbsp
- dark soy sauce老抽🏮 asian1/2 tbsp
- rock sugar冰糖🏮 asian10 g
- ginger, sliced姜(切片)🛒 local3 slices
- garlic cloves, smashed大蒜(拍碎)🛒 local3 cloves
- scallion, cut into sections小葱(切段)🛒 local2 stalks
- star anise八角🏮 asian1 pod
- cooking oil食用油🛒 local2 tbsp
- hot water热水🛒 local300 ml
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Instructions
1Rinse the potato chunks under cold water and pat dry. Keeping them dry at this stage prevents violent oil spatter.
🔍 Look for 1 minVisual: surface no longer wet
You know it's right when: prep complete
2Heat oil in a wok or deep skillet over medium heat. Add the potato chunks and fry, turning occasionally, until the edges turn translucent and faintly golden.
🔍 Look for Medium heat 5-6 minVisual: edges translucent with pale gold patches
You know it's right when: light sizzle, no browning smell
3Push potatoes to one side. Add ginger, garlic, scallion whites and star anise to the bare oil and fry for 30 seconds until fragrant.
🔍 Look for Medium heat 30 secVisual: oil shimmering, aromatics just softening
You know it's right when: sharp fragrant aroma rises
4Add rock sugar and let it melt into the oil, then pour in light and dark soy sauce. Toss until every chunk is evenly coated in a reddish-brown glaze.
🔍 Look for Medium heat 1-2 minVisual: chunks coated deep reddish-brown
You know it's right when: sauce clinging, not pooling
5Pour in hot water to just cover. Bring to a boil, then cover and simmer over low heat until the potatoes are tender and the liquid has reduced by two thirds.
🔍 Look for Low heat 12-15 minVisual: sauce thickened and bubbling slowly
You know it's right when: chopstick pierces potato with no resistance
6Uncover, raise the heat and reduce until the sauce coats the back of a spoon. Scatter with scallion greens and serve with plain rice.
🔍 Look for Medium-high 2-3 minVisual: glossy sauce clinging to each chunk
You know it's right when: large lazy bubbles
Tips
- · Cut the chunks to a uniform 3 cm so they cook at the same rate.
- · Dark soy sauce is for colour, light soy sauce is for salt — do not swap them.
- · Do not stir too often during the braise or the potatoes will break down into mash.
- · Add a few dried chilies with the aromatics if you want a gentle background heat.
Sources & references
Quantities, technique notes, and substitution ratios are cross-checked against established Chinese cookery references and standard food-science sources.
- Read our editorial policy
- Fuchsia Dunlop, Land of Plenty: A Treasury of Authentic Sichuan Cooking
- USDA FoodData Central — ingredient nutrition and portion data
- Traditional Chinese family-kitchen practice and regional taste records
Common questions
Is there a vegan substitute for oyster sauce?
Yes — 'mushroom oyster sauce' (often labeled vegetarian/vegan) is sold in most Asian grocers and increasingly in mainstream supermarkets. It behaves 1:1 and adds the same glossy umami. Watch labels if you're also gluten-free; most brands are GF, some aren't.
Source: HǎoWèi substitution engine
Why do you cook the aromatics (garlic/ginger) first on low heat?
Aromatics contain oils and sugars that turn bitter if scorched. Gentle heat (low-medium) lets garlic and ginger release their fragrance without browning too fast. If the pan is too hot, garlic goes bitter within seconds — that's why we always add aromatics first, before the main ingredients.
Source: Chinese Cooking Demystified technique library
What's the difference between light and dark soy sauce?
Light soy (生抽) is the everyday salty seasoning — thin and salty, used in most recipes. Dark soy (老抽) is thicker, darker, slightly sweet, and used mostly for color (braises, fried rice). If you only buy one, get light soy. For dark soy's color: 1 tbsp light soy + a pinch of sugar + a few drops of molasses.
Source: HǎoWèi pantry guide
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