Hot and sour pig trotters (酸辣猪手, suan la zhu shou) is a Hunan specialty that transforms humble pig trotters into a rich, gelatinous, and deeply flavorful dish. The trotters are first blanched to remove impurities, then slow-braised until the skin and connective tissue become meltingly soft and the meat falls off the bone. They are then served in a vibrant sauce of black vinegar, pickled chilies, garlic, and ginger that cuts through the richness with its spicy-sour kick. The contrast between the rich, collagen-heavy trotters and the bright, acidic sauce is what makes this dish so compelling. In Hunan, pig trotters are prized for their gelatinous texture and are believed to be beneficial for skin and joint health due to their high collagen content.
Pig trotters (猪手, zhu shou, or 猪蹄, zhu ti) are a prized ingredient in Chinese cuisine, valued for their high collagen content and gelatinous texture. In traditional Chinese medicine, collagen-rich foods are believed to nourish the skin, joints, and connective tissues. The Hunan preparation is distinctive for its hot and sour (酸辣, suan la) sauce, which uses black vinegar and pickled chilies to create a bright, acidic counterpoint to the richness of the trotters. This combination of rich and acidic is a hallmark of Hunan flavor balancing. The dish can be served hot, straight from the braising pot, or chilled as a cold dish where the braising liquid gels into a savory aspic. In Hunan restaurants, it is a popular appetizer or main dish, especially at gatherings and celebrations.
In Hot and Sour Pig Trotters, the wok must be smoking hot so the ingredients sear instantly, locking in moisture while developing the smoky wok hei (breath of the wok) that defines Hunan stir-fry. What sets it apart is the layering of the dark vinegar that provides the sour counterpoint essential to Hunan flavor balance, the sour pickled vegetables that represent Hunan's love of tangy flavors, and the pickled vegetables that add the sour dimension Hunan cuisine is famous for. For Hunan families, dishes like this are daily fare — a testament to the region's belief that every meal should be vibrant and memorable.
Ingredients
Pig trotters are available at Asian markets and many butchers. Ask the butcher to cut them into pieces for you. Pickled chilies (泡椒) are available in jars at Asian markets.
- 1 kg pig trotters, cut into pieces
- 50 g pickled chilies (pao jiao)
- 6 garlic cloves, smashed
- 1 inch ginger, sliced
- 3 scallions, cut into sections
- 3 tbsp black vinegar
- 2 tbsp cooking wine
- 2 tbsp light soy sauce
- 1 tbsp dark soy sauce
- 1 tbsp sugar
- 1 tsp salt
- 2 star anise
- 1 cinnamon stick
- 2 tbsp cooking oil
- 1 tsp sesame oil
- 800 ml water
Step-by-Step Instructions
Step-by-Step Visual Guide
Preparation
Building Flavor
Cooking & Finishing
- Blanch the trotters. Place the pig trotters in a large pot of cold water. Add 1 tablespoon of cooking wine and a few slices of ginger. Bring to a boil and cook for 5-10 minutes, skimming off the foam and impurities. This blanching step is essential — it removes blood, bone fragments, and any unpleasant odors. Drain and rinse the trotters under cold water. Remove any remaining hair by briefly passing over a flame or scraping with a knife. The trotters should be clean and pale after blanching.
- Brown the aromatics. Heat a heavy-bottomed pot or Dutch oven over medium heat. Add 2 tablespoons of oil. Add the star anise, cinnamon stick, garlic, and ginger. Stir-fry for 30 seconds until fragrant. Add the pickled chilies and stir-fry for another 15 seconds. The pickled chilies will release their bright, sour aroma. Add the sugar and cook for 30 seconds until it begins to caramelize. This creates a rich, complex flavor base for the braise.
- Braise the trotters. Add the blanched trotters to the pot. Stir-fry for 2 minutes to coat them with the aromatics and caramelized sugar. Add the cooking wine, light soy sauce, and dark soy sauce. Stir well. Pour in the water and 2 tablespoons of black vinegar. Bring to a boil, then reduce the heat to low. Cover and simmer for 60-75 minutes, stirring every 20 minutes, until the trotters are fork-tender and the skin is gelatinous and soft. The meat should almost fall off the bone when pressed.
- Reduce and season. Remove the lid. Increase the heat to medium and cook for 10-15 minutes to reduce the sauce until it is thick and glossy, coating the trotters generously. Add the remaining 1 tablespoon of black vinegar, salt, and sesame oil. Stir well. The final addition of vinegar is important — it adds a bright, fresh acidity that the long-braised vinegar has lost. Taste and adjust the seasoning. The sauce should be rich, spicy, sour, and savory — a perfect balance of flavors.
- Finish and serve. Add the scallion sections. Give everything one final toss. Transfer to a serving plate. The trotters can be served hot, straight from the pot, or chilled in the refrigerator for several hours and served cold. When chilled, the braising liquid will gel into a savory aspic, creating a different but equally delicious experience. Serve with steamed rice. To eat, use your fingers and chopsticks — the trotters are messy but rewarding, with tender meat, soft skin, and gelatinous connective tissue that melts in your mouth.
- Blanch thoroughly. This removes blood, odors, and bone fragments. Do not skip this step.
- Cook until fork-tender. The trotters need 60-90 minutes of simmering. Test by pressing with a fork.
- Add vinegar at the end. The final tablespoon of vinegar provides bright acidity that the braised vinegar has lost.
- Try it cold. Chilled trotters with gelled sauce are a delicacy. The flavors deepen when chilled.
Variations
This versatile trotter dish can be served in several ways. Here are some popular variations.
Cold dish version
After braising, chill the trotters in the refrigerator overnight. The braising liquid will gel into a savory aspic. Slice and serve cold as a refreshing appetizer.
With peanuts
Add 100g of raw peanuts during the last 30 minutes of braising. The peanuts absorb the sauce and become soft and flavorful.
Nutrition
Estimated values per serving (recipe serves 4).
| Nutrient | Per serving |
|---|---|
| Calories | 380 kcal |
| Protein | 28 g |
| Total fat | 24 g |
| Saturated fat | 8 g |
| Carbohydrates | 10 g |
| Sodium | 720 mg |
| Sugar | 6 g |
Values are estimates. Actual nutrition will vary depending on specific ingredients and portion sizes.
Frequently Asked Questions
- Wok not hot enough — the oil should be shimmering but not smoking before you add ingredients.
- Overcrowding the wok — cook in batches if needed; too much food at once causes steaming instead of stir-frying.
- Cutting ingredients unevenly — uniform pieces ensure everything cooks at the same rate.
- Adding sauce too early — let the ingredients sear first, then add sauce in the final 30 seconds.
Serve immediately with steamed white rice — the dish should still be sizzling when it reaches the table. A simple soup like egg drop soup or tomato egg soup provides a cooling contrast. For a full Hunan spread, add one cold appetizer and one vegetable dish.
What Makes It Hunan
Hot and Sour Pig Trotters is a quintessential Hunan dish that showcases the bold, unapologetic flavors of Xiang cuisine. Unlike Sichuan's numbing-spicy heat, Hunan cooking relies on dry, direct spiciness from fresh and dried chilies, complemented by the deep umami of fermented ingredients like duojiao (chopped salted chilies) and douchi (fermented black beans).
The hallmarks of Xiang cuisine — dry chili heat, bright acidic tang, and the deep umami of smoke and fermentation — come together in this dish. There is no numbing distraction of Sichuan peppercorn to mask the ingredients; the spice here is meant to be felt and savored.
Whatever the technique, the goal is the same: clean, layered flavors with a clear throughline of chili heat and the savory depth that only slow building — through fermentation, smoking, or patient braising — can produce.
This recipe represents the Hunan preparation. Many Chinese-American restaurant versions of Hunan dishes add extra sugar, use pre-made sauces, or deep-fry ingredients that are traditionally stir-fried. The key difference is that Hunan cooking uses fresh whole chilies, fermented condiments like duojiao and douchi, and high-heat wok techniques — not thick, sweet sauces.
Related Recipes
If you enjoy rich, gelatinous Hunan dishes, try these other recipes.