Flavoured fats & thickeners
Xiangla Hongyou (香辣红油)
香辣红油 · A foundational Sichuan flavored oil preparation in which a neutral high-smoke-point oil — traditionally pressed rapeseed (caiziyou, 菜籽油) — is infused with warming spices (Sichuan peppercorns, star anise, cassia, black cardamom/caoguo) and fresh aromatics (ginger, scallion, shallot), then poured — typically in multi-temperature stages — over dried Sichuan chili flakes (classically erjingtiao) to extract fragrance, crimson color, and balanced heat. Used as a reusable base for cold dishes, noodles, wontons, dumplings, and dipping sauces; not consumed as a finished dish on its own.
The formula
5:1 oil:dried chili by weight (e.g. 350 g neutral oil : 70 g ground dried Sichuan chilies)
Spice-to-oil load can range 4:1 to 6:1 depending on desired fragrance vs. heat; aromatics are infused and strained before the chili pour.
Identity
- Foundational flavored oil, not a finished dish — used as a reusable component
- Infuses dried chilies via temperature-controlled oil pours to pull fragrance, color, and capsaicin separately
- Strongly aromatic from whole spices (Sichuan peppercorn, star anise, cassia, cardamom) — distinguishes it from plain chili oil
- Native to Sichuan, with caiziyou (rapeseed oil) as the traditional base fat
- Produces a glossy, deep crimson red rather than dark or muddy
- Often finished with toasted sesame seeds and a splash of vinegar or baijiu
Ingredients
| Fat | Rapeseed oil (caiziyou, 菜籽油) or other neutral high-smoke-point oil (peanut, vegetable) | Traditional Sichuan choice is toasted rapeseed oil for its nutty base note; ~350 g per 70 g chili. |
| Base | Ground dried Sichuan chilies, preferably erjingtiao | Provides both fragrance and signature crimson color; lightly toasted first to awaken oils. |
| Aromatics | Sichuan peppercorns (huajiao) | Defines the mala/fragrant character; used in the oil infusion. |
| Aromatics | Star anise | Whole, infused into the oil then strained out. |
| Aromatics | Cassia bark (or cinnamon stick) | A small piece; provides warm, woody backnote. |
| Aromatics | Black cardamom pod (caoguo), cracked | Optional but traditional; smoky depth. |
| Aromatics | Ginger, scallion whites, and shallot or onion — smashed | Fresh aromatics for the oil infusion; strained out before pouring over chili. |
| Garnish | Toasted white sesame seeds | Sprinkled on top after pouring; nutty finish and visual texture. |
Method
- 1Lightly dry-toast the ground dried chilies in a clean pan over low heat for 1–2 minutes until fragrant, then transfer to a heatproof bowl.Wakes up the volatile oils in the chili without scorching; scorching turns oil muddy and bitter.
- 2Combine the neutral oil with all whole spices and fresh aromatics (Sichuan peppercorn, star anise, cassia, black cardamom, ginger, scallion, shallot) in a wok; heat slowly to about 150–170 °C, holding until aromatics are deeply fragrant and darkened, then strain out the solids.Infuses the oil with the warm, floral, smoky spice base that distinguishes xiangla hongyou from plain chili oil; slow heating prevents the aromatics from burning.
- 3Heat the strained spiced oil to approximately 190 °C (high stage).High-heat oil releases the deep toasted fragrance from the chili flakes.
- 4Pour roughly one-third of the oil over the chili flakes, stir, and let settle (mid-temperature extraction).This pass extracts most of the red carotenoid pigments, giving the oil its signature crimson hue.
- 5Cool the remaining oil to about 150 °C (or pour a final low-temperature pass) and combine with the chili mixture.A lower-temperature pour extracts capsaicin and surface flavor without burning residual chili solids; the three-stage pour yields fragrance, color, and heat in balance.
- 6Stir in toasted sesame seeds (optional), a small splash of Chinkiang vinegar or baijiu, and let the oil rest sealed until fully cooled.Sesame adds nuttiness; vinegar/baijiu lifts and rounds the aroma; resting allows the chili sediment to settle and flavors to meld.
Techniques that matter
Multi-temperature oil pour (three-stage pour)
Separates extraction of fragrance (high heat), color (mid heat), and capsaicin (low heat) so the oil is aromatic, red, and spicy without bitterness.
Spice infusion in oil
Whole spices steep in warm oil to release fat-soluble aromatics that would otherwise burn if fried directly with chilies.
Dry-toasting dried chilies
Revives essential oils in dried chili flakes for maximum fragrance and color in the finished oil.
Variations & derivatives
Mainland Sichuan traditional (Mala Market method)Sichuan, China
Uses caiziyou and a five-spice aromatic infusion; emphasizes color and fragrance over capsaicin punch.
Chef Liu's restaurant-style hongyouChengdu, Sichuan
Sesame-flecked, with sesame seeds stirred in as a finishing garnish; served over Sichuan wontons and cold dishes.
Lard-enriched family-style hongyouSichuan restaurant kitchens
Blend of lard with neutral oil for richer mouthfeel; finished with vinegar and a splash of spirits.
Crispy chili oil (crunchy variant)Modern Sichuan
Coarser chili flakes left in the oil for texture rather than fully sedimenting; diverges from the smooth classic.
Used in these dishes
Substitutions
- Erjingtiao dried chilies → Other dried Sichuan chilies (e.g., facing heaven / chao tian jiao) or a chili blend — Color and fragrance vary; erjingtiao gives the brightest red and most aromatic (less fiery) profile.
- Rapeseed oil (caiziyou) → Peanut oil or other neutral vegetable oil — Outside Sichuan, peanut or vegetable oil is the most accessible substitute; flavor will be slightly less nutty.
- Black cardamom (caoguo) → Extra star anise or omit — Adds smoky depth; can be skipped without major harm to the base profile.
- Cassia bark → Half a cinnamon stick — Functionally equivalent warm-spice infusion.
- Fresh aromatics (ginger, scallion, shallot) → Omit or replace with dried versions — Skipping fresh aromatics yields a cleaner, more spice-forward oil; do not fry fresh garlic in the oil as it burns easily.
Troubleshooting
Oil is dark, muddy, or bitter
Oil was too hot when poured over the chilies, or chilies were over-toasted; aromatic solids were left in the oil too long and burned. → Discard and restart with fresh chilies; pour oil in cooler stages (high ~190 °C, mid ~170 °C, low ~150 °C); strain aromatics before the chili pour.
Oil is fragrant but pale and weak in heat
Chilies were old, low-capsaicin, or the low-temperature pour was missed. → Use fresher, properly stored erjingtiao and ensure the third low-temperature pass contacts the chili layer to dissolve capsaicin.
Oil smells flat or one-dimensional
Whole spices were not given enough steeping time, or oil was not held at infusion temperature long enough. → Hold spices in 150–170 °C oil for at least 5–10 minutes; toast spices briefly first to release oils.
Chili sediment at the bottom re-stirs into the oil
Insufficient settling time, or jar was shaken before fully cool. → Let the finished oil rest sealed at room temperature 12–24 hours before first use; decant the clear top oil if a cleaner pour is needed.