What Is Hot pepper sesame oil and How Can I Use It?

Hot pepper sesame oil is easier to cook with than it looks. Here's how to choose, use, and store it, what to substitute, and 18 recipes to get you started.

Key Points

Toasted sesame oil infused with red chili: nutty roast plus a clean burn in one pour.
A finishing oil, like plain sesame oil; add it at the end, never fry in it.
Low smoke point near 350°F (175°C) means high heat scorches and dulls the flavor.
Rebuild it by mixing toasted sesame oil with hot chili pepper oil or red pepper flakes.
Goes rancid fast, so store cool and dark and use within about six months of opening.

What is hot pepper sesame oil?

Hot pepper sesame oil is toasted sesame oil infused with red chili, so it carries two flavors at once: the deep nutty roast of sesame and a clean chili burn. It pours a rich amber to reddish brown and smells like a sesame oil with an edge.

This is not the clear red chili oil you spoon over dumplings. The sesame base makes it darker and nuttier, which is why a little goes a long way.

Like plain toasted sesame oil, it is a finishing oil. Its flavor and the chili heat both fade fast over high heat, so you add it at the end, not at the start.

Cooking With Hot Pepper Sesame Oil

Use it off the heat or right as a dish comes together. A teaspoon stirred into a stir-fry at the end, or drizzled over noodles and rice, gives you toasted sesame plus warmth in one pour.

Kung Pao Tofu and Green Beans in Spicy Miso Sauce both use it to finish.

It works in cold dishes too. Whisk it into a dressing for Soba Noodles with Cucumbers, or splash it over a chilled noodle salad where the nutty heat carries.

A few drops also lift a bowl of soup or a dipping sauce. Treat it like a seasoning, measured by the spoon, not a frying fat by the glug.

Pairing and Common Mistakes

It pairs with soy sauce, rice vinegar, ginger, garlic, scallions, and miso, the everyday backbone of East Asian cooking. The toasted note loves peanuts, tofu, cucumber, and seared meats.

The big mistake is cooking with it like a neutral oil. Toasted sesame oil has a low smoke point, around 350°F (175°C), so frying in it scorches the oil and dulls both the nuttiness and the chili. Pour it in at the finish instead.

The other slip is heavy-handedness. The sesame is potent, so a dish drowned in it tastes bitter and one-note. Start with a teaspoon and build.

Substitutes

The closest swap is plain toasted sesame oil plus a few drops of hot chili pepper oil or a pinch of red pepper flakes. You rebuild both layers that way.

Toasted sesame oil alone covers the nutty flavor if you can skip the heat. For just the heat without the sesame, reach for hot chili pepper oil or chile oil, but expect a cleaner, less nutty result.

In a sauce, a small spoon of tahini whisked with chili and neutral oil approximates the toasted-sesame body, though it is thicker and milder.

Buying and Storage

Look for "toasted" or "dark" sesame oil on the label, with chili or hot pepper listed. A pale, mild oil is untoasted and will taste flat. The good stuff is dark and strongly fragrant straight from the bottle.

Sesame oil goes rancid faster than many oils because it is rich in polyunsaturated fat. Keep it in a cool, dark cupboard, tightly capped, away from the stove.

An opened bottle holds its quality for about six months at room temperature, longer in the fridge, where it may cloud and thicken until it warms back up. If it smells sharp, paint-like, or bitter rather than nutty, it has turned and should go.