Char Siu Bao (BBQ Pork Buns)
The dim sum trolley's softest icon and the steamed bun's happiest argument: the fluffy white dough split at the top's smile, and inside the char siu's own sweet-savoury filling — the barbecue pork's honeyed edges folded through the thick, glossy sauce. The char siu bao is two dishes in one wrapper: the char siu itself (the record's own master, referenced below) and the steamed bun's cake-soft crumb — the dough's yeast and the filling's starch-thickened sauce each with their own doctrine.
Quantities live in the recipe card.
The dough
- the pillowy's own insurance
The filling
- the sauce's thickener
The steam
- The filling's make-ahead and its cold set: the sauce's elements simmered with the diced char siu 3 minutes, the cornstarch's slurry stirred in at the simmer's end and cooked to the thick, glossy spoon-coating — then the filling chilled completely. The cold, set filling is the bun's whole architecture: the warm filling melts into the dough's underside at the pleat, and the cold set holds its own through the steam.
- The dough's proof and its baking powder's timing: the flour, sugar, yeast, milk, water and oil kneaded 10 minutes to the smooth elastic, proved 90 minutes to the doubling — then the deflated dough kneaded again with the sifted baking powder 2 minutes to its full even working, and rested 15 minutes. The baking powder's post-proof addition is the cake-crumble's own secret, the second lift at the steamer's heat.
Doneness & Quality Checkpoints
- The filling: the cornstarch's glossy set, chilled completely before the shaping.
- The dough: the windowpane's first knead, the baking powder's post-proof second knead.
- The steam: the 12-minute patience, the lid's wipe, the 1-minute crack before the open.
Finish & Plate
The buns served straight from the steamer's basket, the smile's crack up — no sauce, no dip; the bun's filling is the bun's whole sauce. The dim sum table's tea at the side, and the trolley's first argument made at the home kitchen's cadence.
Char Siu Bao (BBQ Pork Buns)
Prep: 45 minutes, plus 2½ hours proving · Cook: 15 minutes · Total: About 3 hours 15 minutes · Makes 12 buns
Ingredients
The dough
- 300 g plain flour (or 250 g plain and 50 g cake flour, the tender push)
- 60 g caster sugar, 1 tsp (4 g) instant yeast
- 120 ml warm milk, 60 ml water, 1 tbsp (15 ml) vegetable oil
- 1 tsp (5 g) baking powder, sifted in at the final knead — the pillowy's own insurance
The filling
- 300 g char siu pork, diced to 1 cm (the roast's own record, or the butcher's honest barbecued pork)
- 2 tbsp (30 ml) water or the roast's dripping, 1 tbsp (15 ml) oyster sauce
- 1 tbsp (15 ml) hoisin sauce, 1 tbsp (15 g) sugar, 1 tsp (5 ml) dark soy
- 1 tbsp (10 g) cornstarch mixed with 3 tbsp (45 ml) water — the sauce's thickener
- 1 tsp (5 ml) sesame oil, a pinch of white pepper
The steam
- 12 squares of parchment paper, one per bun
- A steamer at the rolling 100 °C steam, in two batches
Instructions
- The shaping — 12 pleated parcels. The dough divided to 12 balls (about 55 g each), each rolled to the 9 cm round with the edge thinner than the centre (the pleat's own demand), and 2 tablespoons of the cold filling centred — the round gathered at the rim to pleats, pinched closed at the top's twist, and set pleat-up on its parchment square. Checkpoint — each parcel holds its filling sealed with at least a centimetre's dough above the filling's line — an over-filled bun bursts its smile at the steamer and loses the sauce to the water below, and the pleat's pinch the seam's own trust.
- The final proof — 30 minutes' patience. The shaped buns on their parchment squares, covered loosely, and proved 30 minutes at the room's warmth to their visible swell — the dough's slack readiness, puffed but still soft to the fingertip's gentle press. Checkpoint — the proofed bun springs back slowly at the press and looks inflated but not taut — a drum-tight bun at this stage over-proved, its skin thinning toward the steamer's split; still firm and small, it wants another 10 minutes.
- The steam — 12 minutes at the rolling boil, the gentle decline. The buns (in two batches, never crowded) steamed over the rolling 100 °C steam 12 minutes, the lid's first 5 minutes undisturbed — then the heat off and the lid cracked 1 minute before the full open, the condensation's drip wiped from the lid's underside before the buns emerge. Checkpoint — the eating test at the first bun: the dough's cake-soft, faintly sweet crumb splitting in the fingers' pull, the filling's glossy sauce running thick at the centre — the smile's crack opened at the top and the bun's whole argument made in one bite.
Troubleshooting
| Symptom | Cause | Fix |
|---|---|---|
| Buns burst, the sauce lost | Over-filled, or the filling warm | The 2-tablespoon measure; the chilled, set filling |
| Dough dense, not pillowy | The baking powder skipped, or the proof cut | The post-proof knead-in; the full 90-minute proof |
| Buns' crowns wet and doughy | The lid's condensation dumped | The wiped lid, the 1-minute crack before opening |
Storage, Make-Ahead & Variations
- The raw shaped buns freeze on their parchment (un-proved, straight from the shaping), and steam from frozen at 15 minutes — the make-ahead the dim sum freezer itself runs. The steamed bun re-steams to a fair second day; the microwave's rubber is refused. - The filling's kin: the chicken's version on the poached bird's dice, the vegetarian's mushroom-and-char siu sauce's imitation, and the baked bao's glossy crown — the same dough, the oven's 180 °C 15-minute argument instead of the steam. The char siu itself is the A-tier master's own subject, its record the first stop. - The canon's seat: the dim sum canon's soft master — the steamed dough's cake crumb and the barbecue's sweet-glossy heart — at the trolley's most recognised seat.