Scallion Oil Noodles with Soy and Black Vinegar

Why You’ll Love This Recipe

• Big flavor, simple technique: pantry sauces plus gently fried scallions make magic.
• Silky, springy noodles coated in glossy, aromatic oil—deeply savory with just a hint of sweetness.
• Ready in 30 minutes, yet elegant enough for company.
• Flexible base: add chili crisp, sesame, or proteins without complicating the method.

Grocery List

• Produce: Scallions (8–10)
• Dairy: None
• Pantry: Wheat noodles, neutral oil, light soy sauce, dark soy sauce, Chinkiang black vinegar, sugar, white pepper

Full Ingredients

Scallion Oil and Crispy Scallions

• 8–10 scallions (about 8 oz / 225 g), trimmed and cut into 2-inch (5 cm) pieces, lengthwise split if thick
• 1/2 cup (120 ml) neutral oil (peanut, canola, or grapeseed)

Sauce

• 3 tbsp light soy sauce
• 1 tbsp dark soy sauce
• 2 tsp Chinkiang black vinegar
• 1 tsp sugar
• 1/8 tsp ground white pepper
• 3 tbsp hot scallion oil (from above)

Noodles and Assembly

• 12 oz (340 g) wheat noodles (fresh Shanghai-style, or dried lo mein/alkaline noodles)
• 2 tbsp hot scallion oil, for finishing
• Reserved crispy scallions (from above)

Optional Toppings

• Chili crisp or chili oil, to taste
• Toasted sesame seeds, for garnish
• Extra Chinkiang vinegar, to taste

Step-by-Step Instructions

Step 1: Prep the scallions

Trim the root ends and any wilted tops. Cut scallions into 2-inch (5 cm) batons. If your scallions are very thick, slice each piece lengthwise to expose more surface area. Keep the white parts separate from the green parts; the whites take slightly longer to brown.

Step 2: Make scallion oil and crisp the scallions

In a medium saucepan or wok, add the neutral oil and heat over medium-low until it reaches 275–300°F (135–150°C). If you do not have a thermometer, a wooden chopstick inserted should release a gentle stream of tiny bubbles.

Add the scallion whites and fry for 5 minutes, stirring occasionally. Add the scallion greens and continue frying 7–10 minutes, adjusting heat to maintain gentle bubbling, until the scallions are deeply golden with browned edges but not burnt. Total cook time is about 12–15 minutes.

Strain or lift out the scallions with a slotted spoon onto a paper-towel-lined plate; they will crisp as they cool. Pour the hot scallion oil into a heatproof bowl or measuring cup. You should have about 6–7 tbsp infused oil.

Step 3: Mix the sauce

In a large mixing bowl (big enough to toss the noodles), whisk together the light soy sauce, dark soy sauce, black vinegar, sugar, and white pepper. Immediately whisk in 3 tbsp of the hot scallion oil to dissolve the sugar and bloom the aromatics. Set the remaining scallion oil aside for finishing.

Step 4: Cook the noodles

Bring a large pot of water to a rolling boil. Add the noodles (do not salt the water; the soy sauces provide seasoning). Cook according to package directions until just tender, then subtract about 30 seconds for a slightly springy texture. This is typically 2–3 minutes for fresh noodles or 4–6 minutes for dried.

Before draining, reserve 1/4 cup (60 ml) of the starchy cooking water. Drain well.

Step 5: Toss to coat

Add the hot, drained noodles to the sauce bowl. Toss vigorously, adding 1–3 tbsp of the reserved noodle water as needed until the strands are glossy and evenly stained a mahogany brown. Fold in half of the crispy scallions to distribute their flavor throughout.

Step 6: Finish with hot oil and serve

Reheat 2 tbsp of the reserved scallion oil in a small pan over medium heat until it reaches about 325°F (165°C) and shimmers. Divide the noodles among warm bowls, top with the remaining crispy scallions, and carefully spoon the hot oil over each bowl to release a fragrant sizzle.

Taste and adjust with a few extra drops of black vinegar if you want more brightness. Add chili crisp or sesame seeds if using, then serve immediately.

Pro Tips

• Heat control is key: keep the scallion oil below 300°F (150°C) so the scallions caramelize without turning bitter.
• Use the right noodles: fresh Shanghai-style alkaline noodles are classic; dried lo mein or even thin udon also work. Avoid very soft pasta shapes.
• Gloss beats grease: noodle water helps the sauce cling without feeling oily—add just enough to create a silky sheen.
• Balance the finish: adjust with a few extra drops of black vinegar for lift or a pinch more sugar if your soy sauces are very salty.
• Save the extra oil: leftover scallion oil is liquid gold—drizzle on eggs, greens, or fried rice.

Variations

• Chili Crisp Heat: Stir 1–2 tsp chili crisp into the sauce and finish with toasted sesame seeds.
• Mushroom Umami: Replace 1 tbsp light soy with mushroom soy; add a handful of finely sliced, sautéed shiitakes to the noodles.
• Protein Boost: Top with shredded poached chicken or pan-fried tofu; add 1 tsp toasted sesame oil at the end for nuttiness.

Storage & Make-Ahead

Scallion oil can be made up to 2 weeks ahead; store in a clean, airtight jar in the refrigerator. The crispy scallions keep 2–3 days in an airtight container lined with paper towel; re-crisp in a 300°F (150°C) oven for 4–5 minutes. Noodles are best fresh, but leftovers can be refrigerated up to 1 day. Reheat gently in a skillet with a splash of water or in the microwave in 30-second bursts, tossing between bursts. Refresh with a few drops of soy or vinegar as needed.

Nutrition (per serving)

Approximate values: 520 calories; 22 g fat; 72 g carbohydrates; 12 g protein; 2 g fiber; 1100 mg sodium. Values will vary based on noodle type and soy sauce brand.