Sichuan Peppercorn Dressing
A numbing-tingly, savory-tangy dressing built on hot-infused chili and Sichuan peppercorn oil, balanced with soy sauce, malty black vinegar and a touch of sugar. It's great on cold noodles, cucumber salad, blanched greens, tofu and steamed chicken.
- Prep
- 9 min
- Cook
- 6 min
- Wait
- 28 min
- Total
- 43 min
- Makes
- About ¾ cup (180 ml), enough for 6 servings of 2 tablespoons each
Steps
Before you start
- Use a heatproof glass or ceramic bowl (not plastic) for the hot oil, and keep a lid or plate nearby in case of splatter.
- Have every ingredient measured before you heat the oil; the infusing step moves fast.
- Choose reddish-brown Sichuan peppercorns with few black seeds or twigs, and use coarse chili flakes rather than fine powder, which can scorch.
- Leave about 40 minutes in total; the dressing tastes better after resting.
Toast the peppercorns
- Put the Sichuan peppercorns in a small dry skillet over low heat.
- Stir or swirl constantly for 2 to 3 minutes.
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Ready when: The peppercorns smell citrusy and floral and look slightly darker; a few may start to pop.
Tip: Don't let them smoke or turn dark brown. Scorched peppercorns taste bitter, so start over if that happens.
Cool and grind
- Tip the peppercorns onto a plate and cool for 3 minutes.
- Grind in a spice grinder or mortar into a coarse powder with some flecks, like coarse sand.
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Ready when: Mostly powdery with a few small flecks of husk remaining.
Tip: Sift out any large, woody husk pieces if you want a smoother dressing.
Load the heatproof bowl
- In a heatproof glass or ceramic bowl, combine the ground peppercorns, chili flakes, grated garlic and sliced scallion.
- Spread them into a loose, even layer.
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Tip: Set the bowl on a folded kitchen towel so it doesn't slide or crack on a cold countertop.
Heat the oilOven 275°F / 135°C
- Pour the neutral oil into a small saucepan and heat over medium heat for 2 to 3 minutes, until it reaches about 275°F (135°C).
- With no thermometer, drop in a single pinch of chili flakes; it should sizzle gently and slowly bubble, not blacken instantly.
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Ready when: The oil is shimmering with faint wisps of heat rising, but is not smoking.
Tip: Oil that is too hot (above 320°F / 160°C) burns the garlic and chili and makes the dressing bitter.
Pour and sizzle
- Carefully pour the hot oil over the spice mixture.
- It will sizzle and foam immediately.
- Stir with a heatproof spoon for 10 seconds to submerge everything evenly.
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Ready when: The sizzling subsides and the oil turns a deep red-orange and smells fragrant and toasty.
Tip: Stand back and pour slowly, as the oil may spit.
Cool the oil
- Leave the bowl uncovered at room temperature for 10 minutes, stirring once halfway.
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Ready when: The bowl is warm, not hot, to the touch.
Tip: Adding vinegar to very hot oil can cause violent splattering and dulls its aroma.
Whisk in the liquids
- Add the soy sauce, black vinegar, sugar and sesame oil to the bowl.
- Whisk for about 30 seconds until the sugar dissolves and the dressing looks slightly cloudy and emulsified.
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Ready when: No sugar crystals remain when you rub a drop between your fingers or scrape the bowl base.
Rest to blend
- Let the dressing sit at room temperature for 15 minutes so the spices hydrate and the flavors meld.
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Ready when: The aroma is rounded and tangy rather than sharp.
Taste and finish
- Stir well, since the spices settle at the bottom.
- Taste on a piece of cucumber or noodle.
- Add a splash more vinegar for tang or a pinch more sugar for mellowness.
- Stir in the sesame seeds, if using, then spoon over your dish or transfer to a jar.
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Ready when: Balanced: numbing, salty-sour, with gentle sweetness and heat.
Tip: Always re-stir before each use; the flavor is in the sediment.
Good to know
Tips
- Toast the peppercorns just until fragrant, since over-toasting is the most common cause of bitterness.
- Keep the oil at about 275°F (135°C); too hot burns the garlic, while too cool leaves the chili flat and raw-tasting.
- For a milder numbing effect, use 2 teaspoons of peppercorns; for a bolder one, increase to 2 tablespoons.
- Toss with cold noodles, smashed cucumbers or blanched green beans while the dressing is at room temperature, so it coats evenly.
Make ahead
"Make the dressing up to 5 days ahead and keep it refrigerated. The flavor deepens after 1 day. Bring to room temperature for 20 minutes and stir well before using, as the oil may thicken in the cold."
Storage & reheating
Do not store at room temperature longer than 2 hours because it contains fresh garlic in oil. Refrigerate in a sealed jar for up to 5 days. Freezing is not recommended, as the texture separates. To use, let it stand at room temperature for 20 minutes, then stir; no reheating is needed.
Substitutions
- Chinkiang black vinegar → Rice vinegar plus ½ teaspoon extra sugar, or balsamic vinegar. Rice vinegar is lighter and sharper; balsamic is the closest in depth, though sweeter.
- light soy sauce → Tamari or coconut aminos. Tamari keeps it gluten-free (check the label). Coconut aminos is sweeter and less salty, so reduce the sugar to 1 teaspoon.
- coarse Sichuan or Korean chili flakes → Gochugaru or crushed red pepper. Gochugaru is milder and fruitier; use 1½ tablespoons. Crushed red pepper is hotter, so use 2 teaspoons.
- neutral oil (such as canola, grapeseed or peanut) → Roasted peanut oil. Adds a nutty flavor but is stronger; avoid if serving anyone with peanut allergies.