Introduction
Chilli oil is a pantry staple that takes five minutes to make and transforms bland dishes into something with real depth. A single drizzle over eggs, soup, pizza, or rice brings heat and complexity that bottled versions rarely match. Once you’ve made it at home, you’ll wonder why you ever bought it.
Recipe Details
- Prep Time: 5 minutes
- Cook Time: 5 minutes
- Total Time: 10 minutes
- Servings: Makes about ½ cup
Ingredients
- 50 grams chile flakes
- ½ teaspoon salt
- ½ cup peanut oil
Instructions
- Mix chile flakes and salt in a heat-proof bowl.
- Mix 1 tablespoon of the oil into the chile flake/salt mixture. This will prevent the chile from scorching when hot oil is added later.
- Heat peanut oil to about 200°C (392°F). Small bubbles should form when poking a wooden chopstick into the oil.
- Pour heated oil over chilli flake mixture and stir vigorously.
- Allow to cool and store in a container.
Variations
Garlic-forward: Add 3–4 thinly sliced garlic cloves to the heat-proof bowl before pouring the oil. The garlic will infuse the oil with a mellow, savory note that works especially well on vegetables and grains.
Aromatics blend: Stir in ½ teaspoon of Sichuan peppercorns, a pinch of ground cumin, or a strip of dried orange zest before cooling. This shifts the flavor profile toward warm spice rather than pure heat.
Seed addition: Once cooled slightly, stir in 1 tablespoon of sesame seeds or pumpkin seeds for texture and nuttiness.
Milder heat: Use half the amount of chile flakes (25 grams) if you prefer a gentler burn that doesn’t overpower delicate dishes.
Infused oil base: Replace peanut oil with extra-virgin olive oil or avocado oil for different flavor directions—olive oil gives earthiness, avocado oil adds subtle sweetness.
Tips for Success
Temper the chile flakes first with a tablespoon of cold oil before the hot oil hits. This crucial step prevents them from burning and turning bitter; skip it and you’ll end up with acrid, unpleasant heat.
Use a thermometer or the wooden chopstick test to judge oil temperature accurately. Oil that’s too cool won’t extract full flavor; oil that’s too hot will scorch the flakes before they infuse properly.
Stir the mixture vigorously right after pouring the hot oil—this distributes heat evenly and prevents the flakes from clumping at the bottom while cooling.
Store in a clean, dry glass jar away from direct sunlight. Any moisture trapped in the container can encourage mold growth over time.
The oil will continue to darken and intensify slightly as it cools, so don’t worry if it looks paler than you expect immediately after pouring.
Storage and Reheating
Store in an airtight glass jar at room temperature for up to 2 weeks, or in the refrigerator for up to 1 month. The oil will solidify slightly when cold; this is normal and doesn’t affect flavor. No reheating necessary—use directly from the jar at room temperature or cold, drizzling over finished dishes, dips, or hot foods where it will warm slightly from contact.
FAQ
Can I use a different type of oil?
Yes. Olive oil, avocado oil, or vegetable oil all work. Avoid coconut oil (it solidifies too readily) and nut oils like walnut, which can turn rancid quickly once infused with heat.
Why do the flakes sink to the bottom?
This is normal and doesn’t mean the oil has failed. Stir before each use to redistribute the flakes and ensure even flavor and heat in your portion.
How hot does the oil need to be?
Around 200°C (392°F) is ideal. The wooden chopstick test—small bubbles forming around the stick when poked into the oil—is reliable if you don’t have a thermometer. Oil that’s cooler won’t fully bloom the chile’s flavor.
Can I make a larger batch?
Yes, scale up proportionally. Keep the ratio of 100 grams chile flakes, 1 teaspoon salt, and 1 cup peanut oil. The method stays the same, though larger batches take slightly longer to cool.
Attribution: Recipe text from “Cookbook:Chilli Oil” on Wikibooks (© Wikibooks contributors).
Source: https://en.wikibooks.org/wiki/Cookbook:Chilli_Oil
License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/
Additions: Editorial additions and formatting changes were made for clarity and usability. Ingredients, instructions, and other sections may be adapted where appropriate.

