Gu Lou Yuk (Sweet and Sour Pork, Cantonese Style)

The sweet-sour canon's own-named classic at the #19 master's sister seat: the gulaorou's Cantonese signature — the pork's crispy battered nuggets at the pineapple's and bell pepper's brighter crown, the vinegar-sugar's glossy cling — the #19 master's whole doctrine at the gu lou yuk's own historical name and the Cantonese banquet's classic register. The technique carries whole from the master; this record's distinction is the brighter fruit-forward crown and the crispy-cling's classic balance.
Quantities live in the recipe card.
The pork and the batter (the #19 law)
- the 30-minute toss
The sauce's brighter crown
The fry
- The master's laws carried whole: the double fry's returning crisp (the #19/#90 law) and the sauce's pre-mix — the gu lou yuk's own balance (the sugar's honest majority against the vinegar's clean sharp) the Cantonese classic's sweeter register at the #19 master's fuller doctrine.

Gu Lou Yuk (Sweet and Sour Pork, Cantonese Style)
Prep: 30 minutes, plus 30 minutes marinating · Cook: 15 minutes · Total: About 1 hour 15 minutes · Serves 3–4
Ingredients
The pork and the batter (the #19 law)
- 400 g pork tenderloin or shoulder, cut to 2.5 cm cubes
- 1 tsp (5 g) salt, 1 tbsp (15 ml) Shaoxing wine — the 30-minute toss
- 100 g cornstarch, 30 g plain flour, ½ tsp (2 g) baking powder; the ice-water's gradual batter (the thick cling's law)
The sauce's brighter crown
- 3 tbsp (45 ml) rice vinegar or the Chinkiang's depth; 4 tbsp (60 g) sugar
- 2 tbsp (30 ml) ketchup, 1 tbsp (15 ml) Worcestershire's whisper (the #114's fusion echo, optional)
- 100 ml water or pineapple juice; 1 tbsp (10 g) cornstarch's slurry
- 150 g pineapple chunks (the fresh's or the tin's drained honesty); 1 each red and green pepper, cut to the bite's diamonds; ½ onion, wedged
The fry
- Neutral oil at the 170 °C first and 190 °C second fry (the #90 double law)
Instructions
- The double fry (the master's law). The battered cubes' 170 °C first fry to the pale-set and the 190 °C second fury to the deep golden shatter — the #90 law's whole architecture at the nugget's crisp. Checkpoint — the second-fried cube's hollow-hard tap and the blisters' gold — the master's law, unchanged.
- The sauce's gloss and the reunion's brief toss. The sauce's boil to the glossy cling (the slurry's light set), the pineapple's and peppers' 60-second warm-through, and the fried cubes' final 30-second toss at the coat — the immediate service the crisp's own clock. Checkpoint — the eating test: the cube's shatter and the sauce's sweet-sharp cling (the pineapple's brighter acidity the gu lou yuk's own fruit-forward argument) — the peppers' crunch between — the Cantonese classic's whole named argument at the #19 master's unchanged doctrine.
Troubleshooting
| Symptom | Cause | Fix |
|---|---|---|
| The #19 master's whole diagnosis | — | The master's troubleshooting table carries at the identical law |
| Crown's fruit argument flat | The tin's syrupy soak, or the pineapple's absence | The drained fruit's honesty; the fresh crown's brightness |
Storage, Make-Ahead & Variations
- The dressed dish's same-minute law the crisp's own honesty (the #19 law); the fried cubes' 1-day hold the sauce's on-demand toss. The #123 guo bao rou's northern crunch the sweet-sour canon's other master at the one sauce's different architecture.