How to Make Chili Oil (That Actually Tastes Good)

What Chili Oil Actually Is

Chili oil, sometimes called chili crisp or Sichuan chili oil, is dried chili flakes infused with hot, aromatic oil.

The oil pulls out color, heat, and fragrance from the chilies and spices, then the whole thing sits together so the flavors meld.

It’s different from plain hot sauce because it’s oil-based, not vinegar-based, and it usually has some texture from the toasted chili flakes and seeds sitting at the bottom of the jar.

If you’ve had the popular jarred marinades for chicken breast that use chili crisp as a base, this is the homemade version of that same idea, just without the packaging.

Chili Oil vs Chili Crisp: What's the Difference

People search for ‘crispy chili oil’ and ‘chili crisp oil’ almost interchangeably, and honestly the line between them is blurry.

Chili oil is smoother and mostly liquid; chili crisp has more solid bits — fried garlic, shallots, seeds, sometimes peanuts — suspended in the oil.

Both start from the same base method described in this guide.

If you want the crunchy, crispy version, just add more fried aromatics and let some of the chili flakes toast a little longer in the hot oil so they turn brittle rather than soft.

I usually make a hybrid: mostly oil, with enough garlic bits and toasted flakes floating around that every spoonful has some crunch.

The Right Oil Base

The oil you pick matters more than you might think.

I always go for a neutral oil because it lets the chili and spice flavors shine through without competing.

Vegetable oil, canola oil, and peanut oil work well here. They have high smoke points and won’t add unwanted flavor.

Grapeseed oil is another solid choice if you have it on hand.

I’d avoid olive oil for chili oil. It has a lower smoke point, according to FDA guidance on food ingredients, and it tends to solidify in the fridge, which makes scooping out your chili oil annoying.

The olive flavor can also overpower the spices you’re trying to highlight.

What About Chili Oil Smoke Point Specifically

A lot of people search ‘chili oil smoke point’ because they’re worried about burning the batch, and it’s a fair worry.

Canola oil smokes around 400°F, peanut oil around 450°F, and grapeseed oil around 420°F, which gives you plenty of buffer since you’re only heating the oil to 225-250°F for the infusion.

The danger isn’t the oil’s smoke point during infusion — it’s overheating the chili flakes themselves once the oil is poured over them, which can turn the flavor bitter and acrid fast.

The Best Chili Flakes for Authentic Chinese Chili Oil

The type of chili flakes you use can make or break your chili oil, and this is where most homemade batches go wrong.

Sichuan chili flakes are what you want for authentic Chinese chili oil — they’re bright red with fewer seeds than other types.

Don’t use regular crushed red pepper from the Italian section. Those flakes are roasted darker and will give you a burnt, dull flavor when you pour hot oil over them.

Korean gochugaru can work, but it won’t give you traditional Chinese chili oil. It’s usually milder than Chinese chili flakes and has a slightly sweeter, less smoky profile.

You’ll need about ¾ cup of dried chili flakes for 1½ cups of oil.

If you’re chasing that specific ‘sichuan chili oil recipe’ flavor, look for chili flakes labeled ‘er jing tiao’ at Asian grocery stores — they’re the classic choice for this dish and give the deep red color without excessive heat.

Aromatics and Spices to Include

The aromatics create the complex flavor that makes homemade chili oil so much better than store-bought.

At a minimum, you need four essential spices: star anise, a cinnamon stick, bay leaves, and Sichuan peppercorns.

I usually use 5 star anise, 1 cinnamon stick, 2 bay leaves, and 3 tablespoons of Sichuan peppercorns as my base.

These get infused into the oil before you pour it over the chili flakes.

Want more depth? Add cardamom, dried sand ginger, or cloves to the mix.

Fresh garlic and shallots can go in too, though they need to be removed once they brown to prevent burning.

The key is heating these aromatics slowly in the oil at 225-250°F for 30 minutes to an hour. This pulls out all their flavor without scorching them.

How to Make Chili Oil, Step by Step

Making chili oil at home is surprisingly simple once you understand the two-stage process: first you infuse oil with aromatics, then you pour that hot oil over dried chili flakes.

Here’s the full breakdown.

Step 1: Prepare the Chili Base

In a large glass or ceramic bowl, combine 1 cup of chili flakes with 1 teaspoon toasted sesame seeds, ½ teaspoon salt, and ¼ teaspoon sugar.

Make sure the bowl is completely dry.

Any moisture can cause splattering when the hot oil hits it, and water in your chili oil can create a food-safety issue during storage since it encourages microbial growth.

For the chili flakes themselves, use a mix rather than just one type. Korean gochugaru gives a gorgeous red color, while Sichuan chilies add fragrant heat and traditional flavor.

Step 2: Infuse the Oil

This is where the magic happens, and your kitchen starts smelling incredible.

Pour 1 cup of neutral oil, like canola or grapeseed, into a small saucepan.

To the cold oil, add 5 cloves of garlic (thinly sliced), a 1-inch piece of ginger (thinly sliced), 1 star anise, 1 small cinnamon stick, 1 bay leaf, and 1 tablespoon Sichuan peppercorns.

Place the pan over low to medium-low heat. The goal is to gently toast everything, not fry it.

After about 15-20 minutes, tiny bubbles form around the aromatics, and the garlic turns light golden.

Aim for 225-250°F. Too hot and everything burns, creating bitter oil.

Too cool, and the infusion won’t properly extract the flavor in the next step.

Step 3: Combine

Once the aromatics are perfectly golden and fragrant, carefully place a fine-mesh sieve over the heatproof bowl of chili flakes.

Slowly pour the hot infused oil through the sieve.

You’ll hear an amazing sizzle as the oil hits the chilies — that sizzle means the temperature is right and the chilies are toasting properly.

Immediately stir everything together with a clean, dry spoon.

The oil might look darker than you expect right after pouring, but don’t worry — that’s normal.

Let it cool completely at room temperature, which usually takes about an hour. As it cools, the color deepens into a rich ruby red.

Step 4: Strain (or Don't)

Some people strain out all the solids, but I prefer to leave them in for extra texture and flavor.

If you want pure oil, strain it through cheesecloth into a clean jar.

Transfer the cooled chili oil into a clean, dry glass jar with a tight-fitting lid. Mason jars work perfectly for this.

The jar must be completely dry before you add the oil, for the same food-safety reason mentioned in Step 1.

How to Make It Crispy and Crunchy

If what you’re really after is that crispy chili oil texture — the kind with visible crunchy bits floating in it — the tweak is simple.

Fry your sliced garlic and shallots in the oil until they’re deep golden and crisp, then scoop most of them out with a slotted spoon before pouring the oil over the chili flakes.

Let a portion of those crispy bits go back into the finished jar along with some toasted sesame seeds or crushed peanuts.

The crunch comes from dehydrated aromatics, not the chili flakes themselves, so don’t skip the frying step if crunch is the goal.

One thing that trips people up: soggy garlic. If your garlic isn’t fully dried out and crisp before it goes back in the jar, it’ll turn limp and slightly slimy within a day or two.

Tips for Adjusting Heat and Flavor

The beauty of a chili oil recipe is its versatility.

For less heat, use more gochugaru and less cayenne-based chili flakes.

For more complexity, I sometimes add a small piece of dried shiitake mushroom to the oil during the infusion stage. It adds an umami depth that makes the whole batch taste more savory.

A splash of black vinegar or a spoonful of fermented black beans stirred in after cooling can push the flavor toward a more savory, restaurant-style chili crisp.

If you’re cooking with a lot of bold spices generally, it’s worth knowing which everyday ingredients pull double duty — for instance, garlic and ginger used here also show up on lists of foods good for liver health, so this condiment isn’t purely indulgent.

Storage and Shelf Life

Chili oil keeps at room temperature for about 1 to 2 weeks if made with fully dried spices and no fresh garlic left in, according to general food-safety guidance from the USDA Food Safety and Inspection Service.

For longer storage, keep it in the refrigerator, where it’ll last 1 to 2 months.

Fresh garlic and ginger left in the oil raise the risk of botulism-causing bacteria growing in a low-oxygen, oil-covered environment, so refrigeration matters more when you use fresh aromatics instead of dried ones.

Always use a clean, dry spoon each time you scoop some out — introducing moisture or crumbs shortens its shelf life significantly.

If you notice any off smell, mold, or bubbling that wasn’t there before, discard the batch rather than risk it.

Ways to Use Homemade Chili Oil

Once you’ve got a jar in the fridge, you’ll find reasons to use it constantly.

Spoon it over dumplings, noodles, fried eggs, avocado toast, or a bowl of plain rice.

It’s also excellent stirred into a quick dipping sauce with soy sauce and rice vinegar.

If you’re building out a broader spicy pantry, this pairs nicely alongside dishes built from 79 healthy carbs foods like rice, noodles, and roasted vegetables, since a drizzle of chili oil turns a plain carb side into something people actually get excited about.