
Tomato Potato Shreds (番茄土豆丝)
番茄土豆丝 · fān qié tǔ dòu sī
A Shandong home dish that costs almost nothing: two potatoes, two tomatoes, and the sour-sweet juice that makes plain rice disappear. It is the dish I cook when I have not been shopping in ten days.
Recipe author: HǎoWèi Test Kitchen
Home-cooking research team
Reviewed by HǎoWèi editorial team · Last updated 2026-08-29
Ingredients
- potatoes, peeled and julienned土豆(去皮切丝)🛒 local450 g
- ripe tomatoes, diced成熟番茄(切丁)🛒 local3 medium (400 g)
- Chinkiang vinegar镇江香醋🏮 asian10 ml
- garlic, minced大蒜(切末)🛒 local12 g
- scallion, sliced葱(切片)🛒 local2 stalks
- light soy sauce生抽🏮 asian15 ml
- sugar白糖🛒 local4 g
potatoes, peeled and julienned: Rinse shreds in cold water until the water runs clear.
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Instructions
1Julienne the potatoes into matchsticks, then rinse in cold water 2-3 times until the water runs clear. Drain thoroughly.
🔍 Look for Low heat 5 分钟 · 5 minutesVisual: 土豆丝近乎半透明,水不再变浑。Shreds look almost translucent and no longer cloud the water.
You know it's right when: 抓在手里不再黏团,摸起来发涩感。Shreds clump less in your hand and feel squeaky clean.
Rinsing off surface starch is the whole secret to non-clumpy stir-fried potato.
2Heat 2 tbsp oil over medium-high. Add the potato shreds and stir-fry 3 minutes, tossing constantly so they do not stick.
🔍 Look for Medium-high 3 分钟 · 3 minutesVisual: 土豆丝由不透明乳白转为略半透明,个别尖端泛金。Shreds turn from opaque cream to slightly translucent with a few golden tips.
You know it's right when: 贴锅按压时能弯折而不断。They bend without snapping when pressed against the wok.
3Clear a space, add garlic and scallion, fry 15 seconds, then add the tomato and sugar.
🔍 Look for Medium-high 约 1 分钟 · about 1 minuteVisual: 蒜末变浅金,番茄开始渗出红汁。Garlic turns pale gold and the tomato starts to release red juice.
You know it's right when: 番茄遇热油升起明显的酸甜香气。A sharp sweet-sour aroma rises as the tomato hits the hot oil.
4Cover and cook 3 minutes over medium-low so the potato finishes in the tomato steam.
🔍 Look for Medium-low 3 分钟 · 3 minutesVisual: 番茄塌成酱汁,锅盖内侧凝满水珠。Tomato collapses into sauce and steam beads on the lid.
You know it's right when: 土豆丝在锅边一压就碎。A shred mashes easily against the side of the wok.
5Uncover, add light soy sauce and Chinkiang vinegar, and toss 30 seconds over high heat. Serve immediately.
🔍 Look for High heat 30 秒 · 30 secondsVisual: 土豆丝油亮带橙色,锅内无多余汤水。Shreds are glossy and orange-tinted with no watery liquid in the pan.
You know it's right when: 醋香提亮但不刺鼻。The vinegar smell is bright but no longer sharp.
Tips
- · Add the vinegar at the very end — earlier and it just evaporates.
- · Use waxy potatoes if you can find them; they hold the shred shape better.
- · Do not cover for too long or the shreds go soft and lose their snap.
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
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
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
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