Guobao Pork
Northeastern sweet-and-sour pork, fried crisp and coated in a bright, tangy glaze.
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Sweet-Sour Spare Ribs
Pork spare ribs blanched, dusted in starch, fried golden at 180 °C, then tossed in a tomato, sugar and vinegar glaze at the fixed ratio of 5:4:3 — the sweet-sour rib classic. Adapted for a home kitchen from the original ClouChef R&D report — 糖醋排骨, report 108.
Original poster image from clouchef.com (poster: 糖醋排骨_108.jpeg). This is the hero poster only, not a step-by-step photo set.
Prep: 10 minutesCook: 15 minutesTotal: 25 minutesServings: 2Difficulty: MediumRegion: JiangsuFlavour: Sweet-sour, tomato and vinegar
Why this works
The glaze ratio is the recipe: tomato paste to sugar to vinegar at 5:4:3, and the report forbids changing it on the fly, because the balance is what keeps the dish sweet-sour rather than sweet or sour. The ribs are blanched first with ginger and cooking wine, which removes scum and gaminess, then dried thoroughly and dusted in dry starch — wet ribs make the coating slide off in the oil, dry ribs hold it. Frying at 180 °C for about three minutes crisps the outside while the inside finishes, and the rib centre must reach at least 74 °C. The final toss is fifteen to twenty seconds on high heat, no longer: the starch-thickened glaze is already reduced, so the ribs only need coating, and any longer in the pan turns the glaze from glossy to burnt and the crust from crisp to soggy. Serve with plain steamed rice to balance the glaze, and eat the ribs while the crust still has its edge.
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Ingredients
| Ingredient | US | Metric | Substitute / note |
|---|---|---|---|
| Pork spare ribs, middle section | 1.1 lb | 500 g | Report quantity; serves 2 generously (adaptation: the report calls this a single 350 g finished serving, but 500 g raw ribs is a two-person home portion). |
| Tomato paste | 1¾ oz | 50 g | Fried to red oil before the other sauce ingredients go in. |
| White vinegar | 2 tbsp | 30 ml | Ratio tomato paste:sugar:vinegar 5:4:3, per the report. |
| Sugar | 1 tbsp + 2 tsp | 40 g | — |
| Salt | ½ tsp | 3 g | — |
| Corn starch, for dusting | 2 tbsp | 30 g | Dusted dry; shake off the excess. |
| Corn starch, for thickening | 2 tsp | 10 g | Mixed with 20 ml water. |
| Ginger slices, for blanching | A few slices | A few slices | Report gives no quantity. |
| Cooking wine, for blanching | A splash | A splash | Report gives no quantity; about 1 tablespoon (adaptation). |
| Neutral oil, for frying | About 3⅓ cups | 800 ml | Report quantity; only about 60 ml is consumed — the rest can be strained and reused for frying. |
| Neutral oil, for the sauce pan | 2 tsp | 10 ml | — |
Equipment
- Deep pot or wok for frying
- Slotted spoon or spider strainer
- Thermometer (helpful for 180 °C)
Steps
- Blanch and dust. Put the ribs in cold water with ginger slices and cooking wine, bring to a boil, skim the foam, lift out and rinse clean. Drain thoroughly and pat dry, then dust evenly with the 30 g dry starch, shaking off any excess. The ribs may be blanched up to 48 hours ahead, refrigerated.
- Fry golden. Heat the oil to 180 °C (a chopstick inserted bubbles). Fry the ribs until golden and crisp, about 3 minutes. Drain well. Check the centre temperature: it must reach at least 74 °C / 165 °F — if short, fry again briefly for 10 seconds.
- Build the glaze. In a clean pan with 10 ml oil, fry the tomato paste on low heat until it releases its red oil. Add the vinegar, sugar and salt and simmer on low heat until bubbling.
- Toss and thicken. Add the fried ribs and toss on high heat for 15–20 seconds until evenly coated. Pour in the water starch (10 g starch + 20 ml water) and toss until the glaze thickens and clings. Plate at once.
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Technique: 5:4:3, dry ribs, twenty seconds
Two mistakes dominate this dish: wet ribs and a long toss. Wet ribs shed their starch in the oil and fry patchy; ribs tossed longer than twenty seconds drink the glaze and lose their crust, and the sugar in the glaze burns quickly on high heat. Dry the ribs properly, have the glaze fully bubbling before the ribs go in, and count the toss — fifteen seconds is enough, twenty is the limit. If the oil drops below 175 °C, the ribs absorb oil instead of crisping; let it recover between batches.
Variations
- Less sweet: the report forbids changing the ratio, but a home cook may reduce sugar slightly and accept a sharper result (adaptation).
- Air-fryer ribs: spray the dusted ribs with oil and air-fry at 200 °C until golden, then glaze as above (adaptation).
Frequently asked questions
Why blanch the ribs first?
To remove blood and scum, which would otherwise cloud the oil and leave a gamy taste.
Why did my coating fall off?
Usually the ribs were still wet when dusted. Dry them thoroughly and shake off excess starch.
Can I use ketchup?
It will be sweeter and thinner than tomato paste; reduce the sugar if you do (adaptation).
Storage and freezing
Best eaten within minutes of glazing; the crust softens fast. Leftovers keep 1 day refrigerated; re-crisp in a hot oven or air fryer and toss with freshly made glaze. Do not freeze the finished dish.
Sweet-Sour Spare Ribs — Recipe Card
Golden fried spare ribs in a glossy 5:4:3 sweet-sour glaze.
Prep: 10 minutesCook: 15 minutesTotal: 25 minutesServings: 2
Ingredients: 500 g spare ribs; 50 g tomato paste; 40 g sugar; 30 ml vinegar; 3 g salt; 30 g starch (dusting); 10 g starch + 20 ml water (thickening); ginger and cooking wine for blanching; 800 ml frying oil (about 60 ml consumed); 10 ml oil for the sauce.
Steps: 1) Blanch ribs, dry, dust with starch. 2) Fry at 180 °C about 3 minutes. 3) Fry tomato paste to red oil, add vinegar, sugar, salt. 4) Toss ribs 15–20 seconds, thicken with starch, serve.
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Source note: ingredients, quantities and steps are adapted from the original ClouChef R&D report for 糖醋排骨 (data/reports/108.md). The report's pricing, margin and marketing sections are deliberately omitted here; no B2B cost is presented as a home-cook cost. The report's cost table counts the full frying-oil quantity as consumed while its own note says only a small fraction is consumed, so no cost figures are reproduced. The two-person serving presentation and the blanching quantities, not given in the report, are adaptations and are labelled as such. Original poster image: clouchef.com (糖醋排骨_108.jpeg).