Potatoes cut into ridged, wavy fingers with a crinkle blade — said to resemble a wolf's fangs, hence the name — deep-fried crisp, then tossed hot with garlic, fish-mint, cilantro and a dusting of cumin, chilli and ground Sichuan pepper. They land somewhere between fries and a numbing-spicy salad, crunchy outside and fluffy within. A Sichuan night-market and street-snack standard, fried to order in front of you.
A Sichuan street snack out of Leshan, said to have grown out of an earlier fried-potato snack and now known elsewhere simply as fried potato. The name comes from the cut: a crinkle blade slices peeled potato into rippled fingers whose jagged edges look like fangs. Cheap to make and easy to sell, it spread to stalls across Sichuan and beyond — fried fresh, tossed with aromatics and numbing-spicy seasoning, and eaten on the spot. In Leshan it is a household after-dinner nibble; on night-market streets it is the snack you eat walking.
The ridged surface is the point: all those crests and grooves fry up extra-crisp and catch far more seasoning than a smooth chip would. You bite through a brittle, oil-crackled shell into a soft, steamy potato centre. Then the flavours land — garlic and cumin first, the slow numbing buzz of Sichuan pepper, chilli heat behind it, and the cool, faintly medicinal snap of raw fish-mint cutting the grease. It must be eaten hot; once it slumps, the crunch and the wok-warmth are gone.
Two stages of frying give the contrast. A first fry at a moderate temperature cooks the potato through and drives off surface moisture; a second, hotter fry blisters and sets the outside into a crisp shell, the ridges crisping hardest because they have the most exposed surface. Inside, the starch gelatinises and stays fluffy. Critically, the seasoning is tossed on only after frying and off the heat — chilli and Sichuan-pepper powders scorch and turn bitter in hot oil, and fish-mint and cilantro would wilt; mixed on at the end, they coat the crags and keep their aroma. The ridged cut exists precisely to hold that coating.
Variations
The numbing-spicy version is the default, heavy on chilli, cumin and Sichuan pepper; a sour-and-spicy version swaps in vinegar and pickled chilli for a sharper, brighter hit. Fish-mint is the love-it-or-hate-it Sichuan signature and is left out for outsiders. Some stalls finish with sesame, crushed peanut or a squeeze of garlic water, and a few air-fry rather than deep-fry for less grease at the cost of some crunch.
On the Palate
Where Langya Tudou sits in the Chinese flavor cloud
Ingredients
Serves 2
How it's made
6 steps · 20 min
- 15 min
Peel potatoes and cut into rippled fingers with a crinkle blade.
- 22 min
Rinse off surface starch and pat dry.
- 34 min
Fry at a moderate temperature until cooked through, then drain.
Watch outFirst fry at moderate heat just to cook through — this drives off surface water so the second fry can crisp instead of steaming.
- 42 min
Fry again hotter until the ridges blister into a crisp shell; drain well.
Watch outSecond fry hotter until the ridges blister and go rigid — the crags crisp hardest because they catch the most oil.
- 51 min
Toss the hot potatoes with garlic, cumin, chilli powder and ground Sichuan pepper.
- 61 min
Mix in fish-mint, cilantro and scallion off the heat and serve at once.
Watch outToss the chili, Sichuan pepper and herbs on off the heat — in hot oil the powders scorch bitter and the fish-mint wilts.
