Fermented red rice lotus root (南乳藕片, nan ru ou pian) is a visually stunning and deeply flavorful Hunan side dish. Lotus root is sliced into thin rounds and braised with fermented red rice cheese (南乳, nan ru) — a traditional Chinese condiment made from tofu fermented with red yeast rice. The nan ru gives the dish its characteristic ruby red color and a complex, savory-sweet flavor with hints of wine and umami. The lotus root retains its crisp-tender texture while absorbing the rich sauce, creating a delightful contrast between the crunchy vegetable and the deeply flavored braise. This is a popular vegetarian dish in Hunan, often served as part of a multi-course meal or as a side with congee.
Fermented red rice cheese (南乳, nan ru), also known as red fermented bean curd, is a traditional Chinese condiment made by fermenting tofu with red yeast rice (红曲米, hong qu mi), rice wine, and salt. The red yeast rice gives the tofu a distinctive deep red color and a complex, slightly sweet, wine-like flavor. Nan ru has been used in Chinese cooking for centuries, both as a condiment and as a seasoning for braised dishes. When used to braise lotus root, the nan ru permeates the vegetable with its rich color and umami flavor, transforming the mild, crisp lotus root into something extraordinary. This dish is a perfect example of how Hunan cuisine uses fermented ingredients to create depth and complexity, even in simple vegetable dishes.
Ingredients
Fermented red rice cheese (nan ru) is available in jars at Asian markets. Fresh lotus root is available at Asian markets and some supermarkets. If you cannot find fresh lotus root, you can use frozen lotus root.
- 400 g fresh lotus root, peeled and sliced
- 2 cubes fermented red rice cheese (nan ru)
- 2 tbsp nan ru liquid (from the jar)
- 3 garlic cloves, minced
- 1 inch ginger, sliced
- 2 scallions, cut into sections
- 1 tbsp light soy sauce
- 1 tsp sugar
- 1/2 tsp salt
- 1 tbsp rice vinegar
- 2 tbsp cooking oil
- 1 tsp sesame oil
- 100 ml water
- 1 tsp cornstarch (optional, for thickening)
Step-by-Step Instructions
- Prepare the lotus root. Peel the lotus root and slice it into rounds about 5 mm thick. Rinse the slices under cold water to remove excess starch. Soak them in water with a splash of vinegar to prevent discoloration. Lotus root oxidizes quickly when exposed to air, turning brown, so keep the slices in water until ready to cook. Drain well before cooking. The lotus root should be crisp and firm — if it feels soft or has dark spots, it may be past its prime.
- Mash the nan ru. Remove 2 cubes of fermented red rice cheese from the jar, along with 2 tablespoons of the liquid. Mash the cubes with a fork or the back of a spoon until they form a smooth paste. The paste should be thick and deep red. Set aside. The nan ru is the key flavoring for this dish — it provides color, umami, and a complex fermented flavor that is quite unlike any other ingredient.
- Stir-fry the aromatics. Heat a wok over medium heat. Add the cooking oil. Add the minced garlic and sliced ginger. Stir-fry for 15 seconds until fragrant. Add the mashed nan ru paste and stir-fry for another 15 seconds. The nan ru will release its rich, wine-like aroma. Be careful not to burn it — cook over medium heat, not high heat.
- Braise the lotus root. Add the drained lotus root slices to the wok. Stir-fry for 1 minute to coat them with the nan ru mixture. Add the light soy sauce, sugar, salt, rice vinegar, and water. Stir well to combine. Bring to a simmer, then reduce the heat to low. Cover and simmer for 8-10 minutes, stirring occasionally, until the lotus root is tender-crisp and has absorbed the red color of the nan ru. The lotus root should still have a slight crunch — do not overcook it until mushy.
- Finish and serve. Remove the lid. If the sauce is too thin, mix the cornstarch with 1 tablespoon of cold water and add to the wok. Stir until the sauce thickens and coats the lotus root slices with a glossy sheen. Add the scallion sections and sesame oil. Give everything one final toss. Transfer to a plate and serve. The dish should be a beautiful ruby red color, with each lotus root slice glistening with sauce. The contrast between the crunchy lotus root and the rich, savory-sweet sauce makes this a memorable vegetarian dish.
- Keep lotus root in acidulated water. This prevents oxidation and discoloration before cooking.
- Do not overcook. Lotus root should be tender-crisp, not mushy. 8-10 minutes of simmering is usually enough.
- Mash the nan ru smoothly. Lumps of nan ru will not coat the lotus root evenly. Mash until completely smooth.
- Use medium heat for nan ru. High heat can burn the fermented cheese and make it bitter.
Variations
This versatile lotus root dish can be adapted in several ways. Here are some popular variations.
With pork belly
Add 100g of thinly sliced pork belly before the lotus root for a richer, non-vegetarian version. The pork fat enhances the flavor of the nan ru.
Cold dish version
Cook as directed, then chill in the refrigerator and serve cold as a refreshing appetizer. The flavors deepen when chilled.
Nutrition
Estimated values per serving (recipe serves 3).
| Nutrient | Per serving |
|---|---|
| Calories | 180 kcal |
| Protein | 4 g |
| Total fat | 8 g |
| Saturated fat | 1 g |
| Carbohydrates | 22 g |
| Sodium | 520 mg |
| Sugar | 8 g |
Values are estimates. Actual nutrition will vary depending on specific ingredients and portion sizes.
Frequently Asked Questions
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