Fermented Condiments: Doubanjiang

Doubanjiang is a fermented paste made primarily from dried chili peppers and salted, split broad beans (fava beans), with wheat flour and salt added at various stages of production. It is the defining condiment of Sichuan cuisine and is sometimes called 'the soul of Sichuan cooking.' The best doubanjiang — Pixian douban — is produced in Pixian, near Chengdu, where the humid local climate (mist rising from the Min River) and traditional clay vat fermentation create a paste with unmatched complexity. The production process begins with dried broad beans that are soaked, split, and salted to encourage Aspergillus mold fermentation (the same genus used in miso and soy sauce). Separately, fresh red chilies are salted and allowed to ferment. These two fermentations are combined in large ceramic crocks and aged for a minimum of one year; premium products are aged three to five years or longer. Daily turning of the paste with long wooden paddles exposes it to air and sunlight, promoting secondary fermentation and the development of deep brick-red color and an extraordinarily complex flavor — simultaneously hot, savory, slightly funky, and faintly sweet. In cooking, doubanjiang is almost always stir-fried in hot oil (bàochǎo, 爆炒) before any liquid is added. This step is critical: frying the paste in oil for one to three minutes over medium heat drives off harsh raw fermentation notes, blooms the chili aromatics into the oil (turning it red-orange), and develops Maillard-adjacent toasted flavors without burning. Adding liquid too soon traps steam and stews the paste rather than frying it, producing a flat, sharp flavor. Signs of proper frying include a darkening of the paste from bright red to a deeper rust color, the oil separating slightly and turning red-orange, and a fragrant toasted-chili aroma replacing the sharp raw smell. Doubanjiang is the backbone of mapo tofu (麻婆豆腐), twice-cooked pork (huí guō ròu, 回鍋肉), dan dan noodles, Sichuan-style fish-fragrant dishes (yú xiāng, 鱼香), and braised meats. Non-spicy versions (tiánmiàn jiàng-adjacent blends) exist but are far less common outside China. Outside Sichuan, the Lee Kum Kee 'Chili Bean Sauce' (toban djan) is widely available and a reasonable substitute, though noticeably less complex than aged Pixian douban.

“She added a heaped tablespoon of Pixian doubanjiang to the hot oil and stir-fried it for two minutes until the paste darkened and the oil blushed a deep amber-red before adding the silken tofu.”

• TechniqueStir-Frying
• IngredientBroad Bean (Fava Bean)
• DishMapo Tofu

1. 1.Every Grain of Rice — Fuchsia Dunlop (W. W. Norton, 2012)
2. 2.Land of Fish and Rice — Fuchsia Dunlop (W. W. Norton, 2016)
3. 3.The Food of Sichuan — Fuchsia Dunlop (W. W. Norton, 2019)
4. 4.Chinese Food Made Easy — Ching-He Huang (Harper Collins, 2008)

Confidence: high