Pillowy steamed buns folded around slow-braised pork belly, pickled mustard greens, crushed peanuts, and coriander — Taiwan's most photogenic street snack.
Gua bao — literally 'cut bun' — is Taiwan's beloved pork belly slider, sold from night-market stalls in Taipei, Tainan, and Kaohsiung and elevated to global fame by chefs like David Chang at Momofuku and the Bao restaurant in London. The bun is the marvel: a folded oval of milky-white mantou, steamed until cloud-soft and faintly sweet, that opens like an oyster shell to hold its filling. Inside goes hong shao rou — pork belly braised slowly in soy, rock sugar, Shaoxing wine, star anise, and ginger until the fat is silken and the meat slips apart at a touch. Then come the contrasts: suan cai (sour-pickled mustard greens) for tang, crushed roasted peanut sugar for crunch and sweet, and a heap of fresh coriander for greenness. Every bite delivers five textures at once — soft, fatty, sour, crunchy, fresh — and the genius of the design is that the bun absorbs the braising sauce just enough to be saucy without falling apart. Originally a folk snack eaten at the year-end weiya banquet (where bosses thank workers), gua bao traveled with the Taiwanese diaspora to New York and London in the 2010s and became a global hit. Made at home over a weekend, it's an utterly satisfying project.
Serves 8
Whisk warm milk, sugar, and yeast in a bowl; rest 5 minutes until foamy. Add flour, baking powder, and oil; knead 10 minutes by hand or 6 minutes in a stand mixer until smooth and elastic. Cover and prove 90 minutes at warm room temperature until doubled.
The dough should be slightly tacky but not sticky — add a teaspoon of flour at a time if needed.
While the dough proves, blanch the pork belly in boiling water 3 minutes to remove scum, drain, and pat dry. Cut into 8 thick slabs about 2.5 cm wide so each gua bao gets a generous piece.
In a heavy pot, sear pork slabs skin-side down 4 minutes until lightly golden. Add both soys, Shaoxing, rock sugar, star anise, cinnamon, ginger, scallions, and water to barely cover. Bring to a gentle simmer, cover, and cook 2 hours over very low heat. The meat should be silken and the sauce reduced to a syrupy glaze.
Punch down the dough, divide into 8 equal pieces (about 60 g each). Roll each into a 12 cm oval, brush lightly with oil, and fold in half lengthwise. Place on small squares of parchment to prevent sticking.
Rest the folded buns on a tray 30 minutes — they should look pillowy and a finger-press should slowly spring back. Underproofed buns steam dense, overproofed collapse.
Bring water to a strong boil in a steamer. Steam the buns in bamboo or metal baskets 10 minutes over rolling steam. Turn off heat and rest 5 minutes before opening — this prevents shock-collapse from temperature change.
Open each warm bun gently along its fold. Place a slab of glossy pork belly inside, spoon over a tablespoon of the reduced braising sauce, then layer with pickled mustard greens, a generous sprinkle of sweet peanut crumble, and a fistful of coriander.
Eat with both hands while the bun is still warm. The contrasts — soft bun, fatty pork, sour greens, sweet peanut, fresh coriander — must be experienced in one bite.
Use the fattiest pork belly you can find — the fat is what makes it luxurious. Lean cuts braise dry and the dish suffers.
Suan cai (pickled mustard greens) is sold in vacuum packs at Asian grocers — Taiwan or China brands work. Rinse well to control saltiness.
The peanut-sugar crumble must be slightly crunchy, not powder. Pulse in a food processor with short pulses or crush in a mortar.
Buns can be steamed ahead and reheated — re-steam 4 minutes from cold. Reheating in microwave makes them rubbery.
Chicken thigh gua bao — braise boneless skin-on thighs the same way, 45 minutes instead of 2 hours.
Crispy pork belly: after braising, fry skin-side down in hot oil 3 minutes for a crackling layer (Hong Kong style).
Vegan: use braised king oyster mushrooms or marinated tempeh with the same five-spice braising sauce.
Modern Bao London style: add Sriracha mayo and a sprinkle of Maldon salt for an Anglo twist.
Braised pork keeps refrigerated 4 days, freezes 2 months — flavor improves on day two. Steamed buns refrigerate 3 days (re-steam to revive), freeze 1 month. Assemble only just before eating.
Gua bao traces back to Fujianese immigrants who brought folded buns and braised pork to Taiwan in the 17th century. It became a signature Taiwanese snack in the 20th century, traditionally eaten at the year-end weiya banquet where the folded bun was said to resemble a tiger biting a pig — symbolizing the boss thanking workers.
Yes — frozen gua bao buns are sold at most Asian supermarkets (look for 'lotus leaf buns' or 'mantou'). Steam 8 minutes from frozen. Quality varies; Wei-Chuan and Champion brands are reliable.
Yellow usually means too much yeast or overproofing. Wrinkled means temperature shock — rest the buns 5 minutes after steaming before opening the lid.
Absolutely — flavor improves overnight in the fridge. Reheat gently with a splash of water before assembling.
Dry sherry is the best substitute. Avoid 'cooking wine' from supermarkets — it contains added salt and tastes harsh.
Per serving (220g / 7.8 oz) · 8 servings total
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