Sichuan Sour-and-Spicy Shredded Potatoes (Tudou Si)

🌍 Cuisine: Chinese
🏷️ Category: Side Dish
⏱️ Prep: 20 minutes
🍳 Cook: 5 minutes
👥 Serves: 2-4 servings

📝 About This Recipe

A beloved staple of Northern Chinese home cooking, this dish transforms the humble potato into a masterclass of texture and balanced flavor. Unlike soft Western preparations, these potatoes are julienned into matchsticks and quickly blanched to achieve a 'Cuí'—or crisp-tender—snap that is uniquely addictive. Infused with the tingling heat of Sichuan peppercorns, smoky dried chilies, and the sharp brightness of black rice vinegar, it is a refreshing yet fiery side dish that awakens the palate.

🥗 Ingredients

Main Ingredients

  • 2 large Russet or Yukon Gold potatoes (approx. 500g, peeled)
  • 1/4 cup Green bell pepper (sliced into very thin matchsticks)
  • 1/4 cup Carrot (sliced into very thin matchsticks for color)

Aromatics and Spices

  • 3 cloves Garlic (thinly sliced)
  • 1 inch Ginger (peeled and julienned)
  • 2 stalks Green onions (whites and greens separated, cut into 2-inch segments)
  • 6-8 pieces Dried red Sichuan chilies (deseeded and snipped into halves)
  • 1 teaspoon Sichuan peppercorns (whole)
  • 3 tablespoons Neutral oil (such as vegetable or grapeseed oil)

Seasoning Sauce

  • 2 tablespoons Chinkiang black vinegar (or white rice vinegar for a sharper taste)
  • 1 teaspoon Light soy sauce
  • 1/2 teaspoon Granulated sugar (to balance the acidity)
  • 1/2 teaspoon Sea salt (or to taste)
  • 1/2 teaspoon Toasted sesame oil (for finishing aroma)

👨‍🍳 Instructions

  1. 1

    Slice the peeled potatoes into very thin uniform slices (about 1/8 inch), then stack them and cut into fine matchsticks. Aim for the thickness of a matchstick for even cooking.

  2. 2

    Crucial Step: Place the potato shreds in a large bowl of cold water. Rinse and change the water 3-4 times until the water runs completely clear. This removes excess starch and ensures the potatoes stay crunchy rather than mushy.

  3. 3

    Keep the potato shreds submerged in cold water with a splash of vinegar while you prepare the remaining ingredients to prevent oxidation (browning).

  4. 4

    Bring a large pot of water to a rolling boil. Drain the potatoes and add them to the boiling water for exactly 45-60 seconds. They should be slightly translucent but still have a firm snap.

  5. 5

    Immediately drain the potatoes and plunge them into a bowl of ice water or rinse under cold running water to stop the cooking process. Drain thoroughly and pat dry.

  6. 6

    In a small bowl, whisk together the black vinegar, light soy sauce, sugar, and salt until the sugar dissolves.

  7. 7

    Heat a wok or large heavy skillet over medium-low heat. Add the neutral oil and the Sichuan peppercorns.

  8. 8

    Infuse the oil for 2 minutes until fragrant. If you dislike biting into whole peppercorns, scoop them out with a slotted spoon and discard, leaving the flavored oil behind.

  9. 9

    Increase the heat to medium-high. Add the dried chilies, garlic, ginger, and the white parts of the green onions. Stir-fry for 30 seconds until the chilies slightly darken (do not burn them).

  10. 10

    Add the blanched potato shreds, bell pepper, and carrot matchsticks to the wok. Toss vigorously for 1 minute to coat every strand in the flavored oil.

  11. 11

    Pour the vinegar sauce mixture around the edges of the wok so it sizzles before hitting the potatoes. Stir-fry for another 1-2 minutes on high heat.

  12. 12

    Turn off the heat. Stir in the green onion tops and the toasted sesame oil. Toss one last time and transfer immediately to a serving plate to prevent overcooking.

💡 Chef's Tips

The secret to the 'crunch' is the rinsing process; don't skip it or the dish will become a gummy mass. Use a mandoline slicer if your knife skills aren't confident, but be careful of your fingers! If you prefer a cleaner look and sharper acidity, use white rice vinegar instead of the malty Chinkiang black vinegar. Do not overcook the potatoes in the wok; they are already mostly cooked from the blanching step and only need to be seasoned and heated through.

🍽️ Serving Suggestions

Serve as a refreshing side dish alongside a rich, savory main like Braised Pork Belly (Hong Shao Rou). Pairs beautifully with a bowl of steamed jasmine rice or plain congee. Serve at room temperature or chilled as an appetizer during hot summer months. Accompany with a crisp, dry Riesling or a cold Tsingtao beer to cut through the spice.