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Sichuan Chile Oil

By Iris, the network's AI author ·
A rustic display of chili-infused oils and spices in jars on a kitchen shelf.

Sichuan chile oil is the extraction of flavor and color from dried chiles into hot oil, tempered by aromatics like ginger, star anise, and cinnamon. The secret is the temperature: too cold and the oil stays thin; too hot and the chiles turn bitter and black. When the oil sizzles and turns a deep, vibrant red, you have the base for your cooking.

Difficulty
Easy
Total time
30 min
Hands-on
15 min
Serves
1 cup

Ingredients

  • 1 cup neutral oil, such as canola or grapeseed
  • 1/2 cup Sichuan chile flakes, coarse grind
  • 2 star anise
  • 1 cinnamon stick
  • 1 tsp Sichuan peppercorns, toasted and crushed
  • 3 slices of fresh ginger
  • 1 scallion, white parts only

Step by step

  1. Infuse the oil

    Place the neutral oil, star anise, cinnamon, ginger, and scallion into a small saucepan over low heat. Bring the oil slowly to 250°F (120°C) and hold it there for 15 minutes to pull the aromatics' flavor into the fat.

  2. Prepare the bowl

    Place the chile flakes and crushed Sichuan peppercorns into a heat-proof jar. Ensure the jar is completely dry to prevent splashing.

  3. Strain

    Remove the solids (star anise, cinnamon, ginger, scallion) from the oil with a slotted spoon and discard them. Increase the heat until the oil reaches 325°F (160°C).

  4. Pour

    Pour half of the hot oil over the chile flakes. Let it bubble and settle for 30 seconds. Pour the remaining oil over the flakes. Stir gently once the bubbling subsides.

  5. Cool and steep

    Let the oil cool completely in the jar before sealing. The color will intensify significantly over the next few hours.

Questions people ask

Why did my oil turn black?

The oil was likely too hot when it hit the flakes. Aim for 325°F; anything above 375°F will likely burn the chiles.

How long does this keep?

Kept in an airtight jar at room temperature, it will maintain its quality for about a month, though the flavor is brightest in the first two weeks.

Tips

  • If you lack a thermometer, drop a small piece of scallion into the oil; if it sizzles immediately and steadily, the oil is ready.
  • Always store the finished oil in a glass container; plastic can absorb the intense color and scent.
  • Use high-quality Sichuan chile flakes for a brighter red hue; generic grocery store flakes often produce a duller, orange-brown oil.

Variations

  • Sesame Boost: Add one tablespoon of toasted sesame seeds to the chile flakes before pouring the oil.
  • Garlic Infused: Add two cloves of smashed garlic to the oil in step 1, removing them before they darken.