As a chef, I’m obsessed with condiments that do the heavy lifting for me, and as a mom of two, I’m obsessed with anything that makes a 10-minute meal taste like a masterpiece. And trust me when I say, this lemongrass scallion oil is both! If you aren’t already keeping a jar of scallion oil in your fridge, consider this your official culinary wake-up call. Inspired by Vietnamese mỡ hành, this sizzling lemongrass scallion oil is essentially liquid gold. I first started making variations of this oil after one too many sad, naked bowls of rice. You know the ones. Perfectly cooked, technically fine, but with a “something is missing” feeling.
The second that shimmering oil hits the aromatics, everything wakes up. The scallions go sweet and grassy, the lemongrass perfumes your kitchen like you lit a very chic candle, and the ginger-garlic combo brings just enough bite to keep things interesting. With that “off-heat” finish with a splash of yuzu ponzu or coconut aminosis at the end, you get something that behaves like a sauce without ever pretending to be one.
This is the kind of finishing oil you spoon over salmon rather than glaze it. You drizzle it onto noodles instead of tossing them with something heavy. You crack an egg over rice and drip it for a lunch that feels intentional.
I love using this specifically as a sauce replacement. Instead of a heavy, cream-based topping, a generous spoonful of this oil provides all the fat, salt, and acidity you need to round out a dish without overwhelming it. Trust me, once you make a batch of this, you start making it weekly, then love keeping it in the fridge, and finally find excuses to drizzle it on absolutely everything.
Why you’ll love this recipe
- The Ultimate Flavor Multiplier: Not just a garnish, it’s an all-in-one condiment for elevating everything from crispy fried eggs to grilled salmon, seared steak, or even transforming a simple bowl of white rice into a Vietnamese-inspired meal.
- Maximum flavor, minimum effort: It takes less than 5 minutes to prep and even less time to cook.
- The Ultimate Pantry Staple: It stores beautifully and can be used to “save” a boring weeknight meal.
- Better than a sauce: It brings heat, aroma, and depth without the weight of a traditional heavy sauce.
- Texture and Color: The bright green scallions and red chiles make any dish look instantly Instagram-ready.
Substitutions and swaps
- Any neutral oil, like grapeseed or canola, works, thanks to their mild scent and pale color, but avocado is my go-to for its high smoke point and clean flavor.
- If you can’t find fresh stalks, lemongrass paste is a total lifesaver and works perfectly here.
- If you can’t find a fresh Fresno or bird’s eye chile, a teaspoon of dried red pepper flakes or even your favorite chili crisp will do the trick.
- If you don’t have this in your pantry, a mix of soy sauce and a squeeze of fresh lime juice is a great “chef-hack” substitute.
- Coconut aminos can be replaced with yuzu ponzu or a light soy sauce.
Tips that matter
- You want your oil to shimmer, not smoke. If the oil starts to smoke, it’s too hot and will burn the delicate garlic and scallions instantly. So, prep everything before heating the oil.
- If using fresh stalks, only use the pale, tender inner core. The woody outer layers won’t soften in the quick sizzle and will leave you with a “woody” texture.
- Always add your coconut aminos or yuzu ponzu after you remove the pan from the heat. These ingredients contain sugars and liquids that can splatter or burn if added to the hot oil while it’s still on the burner.
- This is a quick flash-cook. We want the scallions to stay bright green and the garlic to stay pale; if they turn brown, the oil will taste bitter.
What to serve this with
- Salmon Udon: The absolute perfect pairing.
- Crispy Fried Eggs: Serve this over crispy fried eggs for a refreshing, citrusy, and aromatic flavor that complements the yolk’s richness. Serve with toast for a 5-star breakfast.
- Grilled Seafood: It’s incredible on white fish, shrimp, or even seared scallops.
- Roasted Veggies: Toss some charred broccolini or roasted cauliflower in a spoonful of this oil.
When should I make this Lemongrass Scallion Oil
Make a batch on Sunday during your “meal prep” window so you have it ready for the week, or whip it up on a frantic Tuesday night to elevate a simple rotisserie chicken or bowl of plain noodles.
Make ahead, storage & reheating
- Lemongrass oil actually tastes even better after an hour or two as the flavors continue to meld.
- Store in a sealed container in the refrigerator for 1 to 2 weeks.
- Lemongrass scallion oil may solidify slightly in the fridge. Gently rewarm it in a small pan over low heat or give it a 10-second zap in the microwave until it’s liquid again before drizzling.
Common mistakes & how to avoid them
- Using a Flavorful Oil: Avoid using extra-virgin olive oil or toasted sesame oil as a base. Their flavors are too strong and differ significantly from traditional Vietnamese mỡ hành.
- Overcrowding the Pan: Use a small saucepan so the aromatics are fully submerged in the oil. If the pan is too wide, the oil will spread too thin and you won’t get that iconic sizzle.
- Cutting Scallions Too Large: Thinly slice your scallions! Large chunks won’t soften in the 20–30 second window, leaving you with raw, pungent bites instead of sweet, oil-infused greens.
Sizzling Lemongrass Scallion Oil
Ingredients
- ½ cup neutral oil avocado oil preferred
- 5-6 scallions thinly sliced (white + green parts)
- 3 stalks lemongrass finely minced (tender inner stalk only) or 2–2½ tsp lemongrass paste
- 1 red chile thinly sliced (seeds optional)
- 1½ tsp freshly grated ginger
- 1 garlic clove finely grated
- ¾ tsp kosher salt
- 1 tbsp coconut aminos or yuzu ponzu (added off heat)
Directions
- Heat neutral oil in a small saucepan over medium heat until shimmering but not smoking.
- Add scallions, lemongrass, Fresno chile, ginger, garlic, and salt. Everything should sizzle immediately.
- Cook 20–30 seconds, just until fragrant and the scallions are bright green. Remove from heat.
- Stir in coconut aminos or yuzu ponzu off heat.
- Use immediately or allow to cool and store.
Rate & Review
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