How to Make the Best Scallion Oil Noodles (Shanghainese Style)

Few dishes deliver as much flavor from so few ingredients as a proper bowl of scallion oil noodles. This Shanghainese classic transforms humble green onions, neutral oil, and soy sauce into something deeply aromatic, savory, and addictive — all in about 20 minutes. Below, you'll find everything you need to nail this dish at home, from cutting technique to sauce ratios to storage tips.

Table of Contents

• Key Takeaways
• What Are Scallion Oil Noodles?
• Ingredients for the Best Scallion Oil Noodles
• Choosing and Preparing the Noodles
• How to Cut Scallions Properly (So They Don't Burn)
• Frying the Scallions and Infusing the Scallion Oil
• Making the Scallion Oil Sauce
• Cooking and Tossing the Noodles with Scallion Oil
• Customize Your Scallion Oil Noodles (Toppings, Proteins & Spice)
• Make-Ahead, Storage & Reheating Tips
• Essential Tools for Perfect Scallion Oil Noodles
• More Noodle Recipes & Ways to Use Scallion Oil
• FAQ

Key Takeaways

• Scallion oil noodles (葱油拌面) are a classic Shanghainese comfort food built on fragrant scallion oil, a balanced soy sauce mixture, and springy wheat noodles, ready in roughly 20 minutes.
• The secret to the best version is slow-fried scallions that turn golden brown without burning, properly cooled scallion infused oil, and noodles cooked just to al dente.
• You'll get clear, step-by-step recipe instructions, pro tips on preventing splatter and bitterness, storage advice, and ideas for customizing with chili oil, proteins, and vegetables.
• Using proper kitchen tools — a sharp gyuto chef knife, a sturdy cutting board, and heat-safe silicone utensils — makes prep easier, safer, and more consistent.
• An FAQ at the end covers substitutions, gluten-free options, dark soy sauce alternatives, and make-ahead scallion oil safety.

What Are Scallion Oil Noodles?

Scallion oil noodles, known as 葱油拌面 (cōng yóu bàn miàn) in Mandarin, are a beloved Shanghai street food and homestyle dish. At their core, scallion oil noodles consist of chewy wheat noodles and scallion-infused oil, tossed together with a savory-sweet soy sauce.

The key to scallion oil noodles is slow infusion of scallions in oil, a process that coaxes out complex, nutty aromatics through the Maillard reaction and the transformation of sulfur compounds in the alliums.

The core flavors come from fried scallions, scallion oil, light soy sauce and dark soy sauce, and a touch of sugar. Think of scallion oil as Chinese cooking's answer to chili oil: a versatile, infused fat you can spoon over noodle dishes, rice, steamed fish, and stir-fried vegetables. This scallion oil noodle recipe is beginner-friendly — a handful of pantry ingredients, one pan, and basic technique.

The recipe below is a classic vegetarian version. Optional ideas for adding meat, eggs, or chili oil come later in the article.

Ingredients for the Best Scallion Oil Noodles

Quality scallions, a clean neutral oil, and the right soy sauces are what separate a forgettable bowl from restaurant-quality Shanghai scallion oil noodles. Here's what you need:

• Noodles: Thin, round Chinese wheat noodles (Shanghai-style or wonton noodles) are traditional. Good substitutes include dried "knife-cut" noodles, dried udon noodles, ramen noodles (discard seasoning packet), or even Italian spaghetti when Asian noodles are unavailable.
• Scallions (green onions): About 8–10 stalks, separated into whites and greens - the whites take longer to cook, the greens are more delicate.
• Optional aromatic: 1–2 cloves minced garlic for extra depth.
• Light soy sauce (regular soy sauce): The main seasoning for saltiness and umami.
• Dark soy sauce: Used sparingly for color, caramel notes, and a richer flavor. Dark soy sauce adds color and flavor to the sauce without overpowering it.
• Sugar: About ½ teaspoon per serving. Sugar is added to balance the salty flavors of soy sauce.
• Oil: A neutral oil with a high smoke point - canola oil, peanut oil, sunflower, or grapeseed. Avoid olive oil or coconut oil here, as their distinct flavors compete with the scallion aroma. Vegetable oil works fine too.
• Optional extras: Sesame seeds, chili oil, toasted sesame oil (a few drops), rice vinegar or balsamic vinegar for tang, oyster sauce for depth, low sodium soy sauce if watching salt intake.
• Optional toppings: Shredded chicken, a fried egg, ground pork, julienned cucumber, or blanched bok choy.

Exact amounts appear in the recipe card below. The sauce includes light soy sauce, dark soy sauce, and sugar as its non-negotiable trio.

Choosing and Preparing the Noodles

While scallion oil is the star, noodle choice and texture determine how satisfying the finished dish feels.

• Traditional scallion oil noodles use thin, round wheat noodles, sometimes labeled Shanghai noodles or thin wheat noodles. Their springy chew absorbs the scallion oil sauce without turning mushy.
• Alternative noodles include rice noodles, soba, and spaghetti. Soba noodles are a common substitute for wheat noodles, and egg noodles and ramen can also be used in scallion oil noodles. Fresh noodles cook faster than dried noodles - adjust timing accordingly.
• Rice noodles are not recommended due to cooking challenges: they soften quickly, break easily, and absorb sauce differently from wheat noodles.
• For gluten-free, use 100% buckwheat soba or certified gluten-free rice noodles, and swap regular soy sauce for tamari.
• Cook noodles according to package directions in plenty of boiling water, stirring to prevent sticking. Noodles should be cooked al dente as they will absorb sauce after cooking. Taste a minute before the timer goes off.
• Rinse briefly only if your noodles are very starchy or you want a springier, less sticky texture. Otherwise, just drain well.

How to Cut Scallions Properly (So They Don't Burn)

Correctly sliced scallions are crucial for crispy fried scallions and evenly flavored scallion oil. Cutting them too fine leads to scorched, bitter bits. Too thick, and they won't crisp properly.

Here's the right approach, ideally using a sharp knife like the Takoizu Gyuto Chef Knife, White on a stable Acacia End Grain Cutting Board for safe, precise cuts:

• Wash scallions and pat them dry before cooking. Wet scallions cause dangerous splattering in hot oil.
• Trim off the root ends of scallions before slicing, and remove any wilted outer layers or dried tops.
• Cut scallions into 2-inch long pieces, then julienne them lengthwise into thin strips for classic Shanghainese texture.
• Scallions are separated into white and green parts for different cooking times. Keep them in separate piles. Whites go into the oil first.
• Avoid mincing scallions into tiny pieces. Larger strands crisp up with deep golden edges while tiny pieces scorch and turn bitter.

Frying the Scallions and Infusing the Scallion Oil

Slow-frying scallions over moderate heat creates both crispy scallions and a deeply aromatic scallion infused oil, the foundation of this entire dish. Rushing this step with hot oil is the most common mistake.

• Heat ⅓ to ½ cup neutral oil in a skillet or wok over medium low heat until shimmering (around 225–250°F / 110–120°C). The oil should ripple, not smoke.
• Add scallion whites first, stirring occasionally with a heat-resistant spatula from a 15 Piece Silicone Kitchen Utensil Set. Fry for 5–7 minutes until softened and lightly golden.
• Add scallion greens and continue frying over medium heat until golden brown — about 3–5 more minutes. Watch for scallions brown at the edges while the oil bubbles gently and the kitchen smells nutty, not acrid.
• The ideal scallion texture is crisp at the edges and deep golden brown. If scallions brown too quickly, reduce heat immediately.
• Remove fried scallions from oil to keep them crispy. Use a slotted spoon to lift them out, letting excess oil drip back, and set aside on a paper towel-lined plate. Remove fried scallions before finishing the sauce to keep them crisp.
• The flavored scallion oil remains in the pan - this is your scallion oil sauce base.

Dry scallions thoroughly before frying to prevent splatter. This single step prevents most kitchen mishaps with this recipe.

Making the Scallion Oil Sauce

The scallion infused oil is now transformed into a glossy, savory sauce with soy sauce and sugar that clings to every strand. The sauce is made by simmering soy sauce and sugar in scallion oil… Simple, but timing matters.

• Safety first: Let the scallion oil cool for 1–2 minutes off the heat before adding any liquid. Adding soy sauce to screaming-hot oil causes violent splattering.
• In a small bowl, stir together 1 tablespoon light soy sauce, 1–2 teaspoons sauce dark soy, and ½ teaspoon sugar until the sugar begins to dissolve. This is your soy sauce mixture.
• Slowly pour this sauce mixture into the warm scallion oil, then return the pan to low or medium low heat. Stir gently with a silicone spatula until the sauce lightly bubbles and sugar fully dissolves, about 30–60 seconds.
• Taste and adjust: add a splash more soy sauce (dark soy) for depth, or a pinch more sugar if too salty. The finished scallion oil sauce should look deep amber-brown and smell intensely savory.
• Optional garlic note: Fry 1–2 cloves of thinly sliced garlic in the scallion oil for 30 seconds before adding the soy mixture, keeping garlic pale golden.
• The sauce can be stored in the fridge for up to one month if made in a larger batch.

Fried scallions are added as a garnish after mixing the sauce. Never cook them into it, or they lose their crunch.

Cooking and Tossing the Noodles with Scallion Oil

Timing matters here: the noodles should be hot and just cooked when they meet the scallion oil sauce for maximum absorption and shine.

• Boil your chosen noodles in a large pot of water, stirring occasionally to prevent clumping. Follow package directions but taste a minute early to keep them slightly firm.
• Drain well using a colander. Reserve about ¼ cup of noodle cooking water before draining - you'll likely need it.
• Mix noodles with sauce while still hot for better flavor absorption. Return the hot noodles to the pot or place them directly into the pan with warm sauce, tossing quickly with silicone tongs until all the noodles are evenly coated.
• If noodles seem dry, incorporating reserved noodle water can help the sauce adhere better to the noodles. Add a spoonful at a time.
• Plate by twirling cooked noodles into warm bowls. Top generously with the reserved fried scallions for texture and extra scallion flavor.
• Serve immediately for the best texture and flavor. Scallion noodles lose their fragrance and the crispy scallions soften within minutes of sitting.
• Optionally sprinkle sesame seeds or drizzle chili oil over the top.

Serve scallion oil noodles immediately. This is not a dish that sits well. The flavor that comes from the hot oil and fresh crunch fades quickly.

 

Customize Your Scallion Oil Noodles (Toppings, Proteins & Spice)

This basic bowl of scallion oil noodles is a base template you can adjust endlessly depending on what's in your fridge.

• Proteins: Lay a crispy fried egg on top, toss in shredded chicken from a rotisserie bird, brown some ground pork with a splash of soy sauce, or pan-fry cubed tofu until golden.
• Fresh toppings: Julienned cucumber, blanched bok choy, chopped cilantro, crushed peanuts, or toasted sesame seeds for color and crunch.
• Spice: Drizzle chili oil or chili crisp over finished scallion noodles for heat. Add fresh sliced red chilies to the hot oil after frying scallions for infused heat.
• Dietary tweaks: Keep it vegan by omitting oyster sauce and using mushroom-based soy sauce. For lower sodium, use low sodium soy sauce and adjust sugar to taste.
• More sauce: Want saucier noodles? Double the scallion oil sauce recipe. Want it lighter? Add more vegetables and less oil.

Crispy fried scallions are often used as a garnish on scallion oil noodles regardless of what other toppings you add.

Make-Ahead, Storage & Reheating Tips

Scallion oil and the sauce can be prepared ahead, making ultra-fast weeknight oil noodles possible on busy evenings.

• Make-ahead scallion oil: Prepare a larger batch, cool completely, and store the leftover sauce and oil in a clean jar in the fridge for up to 1–2 weeks.
• Crispy fried scallions: Keep in a separate airtight container at room temperature for 1–2 days, or refrigerated for 3–5 days. They gradually lose crispness but still add flavor.
• Leftover noodles: Store finished scallion oil noodles in an airtight container and refrigerate up to 3 days. Keep extra fried scallions separate if possible.
• Reheating: Add a small splash of water to loosen the noodles and warm gently in a skillet over medium heat or microwave covered, stirring once. Refresh flavor by adding a teaspoon more scallion oil or a drizzle of soy sauce.
• Freezing: Noodles generally don't freeze well… texture suffers. It's faster to boil fresh noodles and use pre-made scallion oil and sauce. Nutrition calories stay roughly the same whether fresh or reheated, but texture changes noticeably.

Review recipe instructions before scaling up the sauce. The saturated fat content from oil adds up quickly in larger batches.

Essential Tools for Perfect Scallion Oil Noodles

The right kitchen tools make slicing, frying, and tossing noticeably easier and safer when cooking Chinese food.

• Takoizu Gyuto Chef Knife, White: Ideal for julienning scallions into uniform thin strips, slicing garlic, and trimming vegetables. A sharp blade avoids crushing cell walls, which causes premature moisture release and uneven browning.
• Acacia End Grain Cutting Board: A dense, stable surface that protects your knife edge and prevents slipping while you pat dry and prep scallions.
• Seido Shears, Kitchen Scissors: Handy for snipping scallion greens directly into a bowl, trimming herb roots, or opening noodle packages cleanly when you're in cook mode.
• 15 Piece Silicone Kitchen Utensil Set: The silicone spatula, slotted spoon, and tongs handle hot oil safely, lift fried scallions without scratching cookware, and toss noodles evenly.

Heat-resistant utensils and a proper cutting setup also reduce the risk of splatter injuries, especially important when working with scallion infused oil cool enough to handle but still warm.

More Noodle Recipes & Ways to Use Scallion Oil

Once you master this sauce recipe, scallion oil becomes a building block for dozens of more noodle recipes and Chinese recipes.

• Toss 1–2 tablespoons of scallion oil with plain wheat noodles plus a spoon of chili oil for a spicier variation, or drizzle over cold udon noodles for a simple summer lunch.
• Pair a bowl of scallion oil noodles with steamed dumplings, stir-fried vegetables, or braised tofu for a complete Shanghainese meal.
• Use leftover scallion oil to dress steamed rice, drizzle over steamed fish, spoon over soft scrambled eggs, or mix into stir-fried greens.
• Explore related noodle dishes like garlic noodles, sesame noodles, or chili oil noodles - scallion oil works as a flavor base for all of them.

Serve immediately with whatever pairing you choose, and keep required recipe ratings in mind if you post your results online.

FAQ

These questions address common issues and variations not fully covered above.

Can I make scallion oil noodles gluten-free?

Yes. Use rice noodles or certified gluten-free soba (100% buckwheat), and swap regular soy sauce and dark soy sauce for gluten-free tamari plus a touch of brown sugar for color. Texture will differ slightly from Chinese wheat noodles, but the scallion oil and fried scallions still deliver strong flavor.

What can I use instead of dark soy sauce?

Mix regular soy sauce with a small amount of molasses or dark brown sugar, simmered briefly until slightly thickened, as a simple substitute. If you skip dark soy entirely, the noodles will be lighter in color but still tasty - season to taste with additional light soy sauce. Soy sauce dark soy substitutes like this won't have identical kokumi depth, but they work well enough for home cooking.

How do I keep scallions from splattering and burning in the oil?

Pat dry scallions thoroughly after washing, heat oil only to medium or medium low heat, and add scallions in small handfuls while stirring with silicone utensils. Use a splatter guard if you have one, and move the pan off the heat momentarily if the oil bubbles too violently or the scallions brown too fast.

Can I bake or air-fry the scallions instead of frying in oil?

Baking or air-frying can create crispy scallions with less oil, but they won't infuse the oil the same way, so the flavor profile will be noticeably different. If you prefer this method, make a small batch of stovetop scallion oil for the sauce and use oven-crisped scallions as a topping only.

Is scallion oil safe to store at room temperature?

For food safety, homemade scallion oil should be cooled completely and stored in the refrigerator in a clean, sealed jar — not left at room temperature for extended periods. Properly refrigerated, scallion infused oil is typically best used within 1–2 weeks. Discard if it smells off or looks unusually cloudy.