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Overview

Sweet and Sour Pork

Gu Lou Yuk — Cantonese Sweet and Sour Pork

This sweet and sour pork recipe fries battered pork until crisp, then tosses it in a glossy sauce of vinegar, sugar and ketchup with bell peppers, onion and pineapple, so the coating stays crunchy under the shine. One serving is about 310 g.

Sweet and sour pork, gu lou yuk in Cantonese, comes from Guangdong in southern China, where cooks balanced vinegar's sharpness with sugar's sweetness — a combination that suited the region's love of bright, clear flavours. The dish travelled with Cantonese migrants and became one of the most famous Chinese dishes in the West, a fixture of takeout menus in Britain and America from the mid-20th century onwards, usually served with pineapple and peppers.

Pairs well with: Steamed jasmine rice and a cold lager or iced tea

Provenance

China flag China

Cantonese Takeout Classic

East & South Asia

Time Dedication

45m

25m prep • 20m cook

Batch Yield

4 Servings

739 kcal per serving

1 serving ≈ 310 g

Technical Skill

Intermediate

Medium (Frying)

Meal Timing & Digestive Fit

Breakfast

Not Advised

Lunch

Hearty Midday Main

Dinner

Ideal Hearty Main

Snack & Tea

Inappropriate

High Protein Occasions: Takeout nights at home, family dinners, when only something sweet, sour and crunchy will do Cost: Medium — about $4–5 per serving at home
Tags: Pork Sweet Sour Savory High-protein Fried
Glossy sweet and sour pork pieces with peppers and pineapple beside fried rice

Cantonese Takeout Classic

Photo: RegionVisitor90, CC0, via Wikimedia Commons

The Heritage Formulary

Measured Ingredients

Estimated cost: Medium — about $4–5 per serving at home (USD)

Real sweet and sour pork is double-fried so the coating stays crisp under the sauce — never pork simmered soft in a sweet glaze.

Execution Methodology & Culinary Technique

Step-by-Step Cooking Guide

Active 45m
P

Prep Stage: Marinate, Mix the Batter and the Sauce

25 Mins • Knife Work & Mixing

Toss the pork cubes with the soy sauce, Shaoxing wine and salt and leave them to marinate for 20 minutes. While they rest, mix the sauce — sugar, rice vinegar, ketchup, pineapple juice and soy sauce — in a jug, stir the cornstarch slurry in a separate cup, and whisk the batter (cornstarch, flour, egg and 60 ml of cold water) until smooth. Cut the peppers, onion and pineapple into even chunks so they all cook at the same speed.

Maestro Tip: Mix the sauce before you fry: once the pork leaves the oil, you have about two minutes before the coating starts to soften.

  1. 1

    Fry the Pork — First Fry

    10 Mins Oil at 180°C (350°F); pork cooked to 63°C (145°F)

    Dip each marinated pork cube in the batter, let the excess drip off, and lower it into the hot oil. Fry in batches of 8–10 for 3–4 minutes until pale gold, then lift out and drain on a wire rack. The pork is not finished yet — the second fry is what makes it stay crisp.

    Fry in small batches — crowding the pot drops the oil temperature and the batter soaks up oil.

    Done when: The cubes are pale gold, the batter is set, and the pork inside is cooked through.

  2. 2

    Second Fry for Crunch

    5 Mins Oil at 190°C (375°F)

    Turn the oil up to 190°C (375°F) and fry the pork again, in batches, for 1–2 minutes until deep golden and audibly crisp. Drain on the wire rack. The double fry drives out the last moisture and is the difference between pork that stays crisp in the sauce and pork that goes soggy in a minute.

    Do not skip the second fry — it is the whole secret of takeout-style crunch.

    Done when: The cubes are deep golden, the coating crackles when tapped, and the pork is juicy inside.

  3. 3

    Stir-Fry the Vegetables

    3 Mins High heat, about 200°C (400°F)

    Heat a tablespoon of oil in a large wok or pan over high heat. Add the peppers, onion and pineapple chunks and stir-fry for 2 minutes — they should stay crisp and bright, not soften. Pour in the sauce and bring it to a boil, stirring, then add the cornstarch slurry and cook for 30 seconds until the sauce turns thick and glossy.

    Keep the vegetables moving and the heat high — 2 minutes is enough; soft peppers are a failure here.

    Done when: The vegetables are bright and crisp, and the sauce coats the spoon in a glossy layer.

  4. 4

    Toss and Serve at Once

    2 Mins Serve immediately, sauce just off the boil

    Tip the hot, crisp pork into the wok and toss quickly — just 20–30 seconds — until every piece is coated in sauce. Serve immediately over steamed rice. The coating stays crisp only if the pork meets the sauce at the last possible moment.

    Toss, do not simmer: every extra minute in the sauce softens the crust.

    Done when: Every piece of pork is glossy with sauce, the vegetables are crisp, and the coating is still crunchy.

Finishing Touches & Plating

Serve sweet and sour pork the moment it is tossed — the contrast of the hot, crunchy coating, the glossy sweet-sour sauce and the crisp peppers is the whole point, and it fades within minutes.

Nutritional Physiology & Benefits

Nutrition

Energy

739

kcal / serving

Protein

29g

Complete AA

Carbs

54g

Complex

Fats

44g

Healthy

Per serving (4 servings · 1 serving ≈ 310 g)
Energy739 kcal
Protein29 g
Carbohydrates54 g
Fat44 g
Fibre2.3 g
Sugar26.2 g
Sodium880 mg
Per 100g
Energy238.4 kcal
Protein9.4 g
Carbohydrates17.5 g
Fat14.2 g
Fibre0.7 g
Sugar8.4 g
Sodium284 mg

Nutrition values are estimated — calculated from USDA FoodData Central values for the listed ingredients.

Vitamins & minerals: Vitamin B1 and B6 (pork), vitamin C (bell pepper, pineapple), niacin (pork).

High in Protein

About 29 g of protein per serving from the pork and egg, so one plate genuinely fills you up.

B Vitamins from Pork

Pork is a natural source of thiamin (vitamin B1) and vitamin B6, which support normal energy metabolism.

Fresh Vegetables in Every Bite

Bell peppers, onion and pineapple add vitamin C, fibre and freshness to a rich, fried dish.

Food Pairings

What to Eat With

To optimize nutrient absorption and elevate the sensory depth, pair with these authentic accompaniments:

Sides

Steamed Jasmine Rice

Plain rice soaks up the glossy sauce and turns the pork into a proper meal — without it, the sauce has nowhere to go.

Vegetables

Stir-Fried Greens

A simple plate of garlicky greens adds a bitter, fresh contrast to the sweet sauce and balances the richness.

Drinks

Iced Green Tea

Cold, unsweetened green tea cleanses the palate between bites of rich, sweet pork.

Full Menus

As a Takeout-Style Spread

Serve the pork with rice, an egg-drop soup and spring rolls for the full takeout spread — the sweet pork is the star of the table.

Complete menu

Serve the pork over steamed jasmine rice with stir-fried greens on the side and iced green tea to drink.

Digestive Guardrails

What NOT to Combine

To prevent digestive distress, sluggishness, or palate clash, avoid pairing the dish with these elements:

Simmering the Pork in the Sauce

Letting the fried pork simmer in the sauce turns the crisp coating to mush in under a minute. Toss it for 30 seconds and serve at once. This is general guidance, not medical advice.

Skipping the Second Fry

A single fry leaves moisture in the coating, so it softens the moment it meets the sauce — the second, hotter fry is what keeps it crisp.

General information only, not medical advice — consult a doctor for personal dietary decisions.

Who Should Eat It

Who Should Eat

  • General adultsA rich, satisfying dinner — enjoy a full portion with rice and greens.
  • ChildrenSuitable from age 5+; the pork is soft and the sauce is sweet — cut the cubes small for younger children.
  • ElderlyEnjoy a modest portion — the pork is tender and easy to eat.
  • Pregnant womenGenerally suitable if the pork is cooked through; keep the sauce modest because of the sugar and salt.
  • Breastfeeding womenGenerally suitable; the protein supports recovery — keep the fried portion moderate.
  • AthletesA strong post-workout meal: about 29 g of protein per serving with rice for glycogen.
  • Weight gainA good choice — take a full portion with an extra serving of rice.
  • Weight lossAn occasional treat — the pork is rich and the sauce is sweet; take a smaller portion and load up on the greens.

Health Conditions — Adjust or Avoid

Conditions

  • DiabetesThe sauce sugar and the batter are the main sources of carbs — keep the rice portion modest and ask your clinician about portion size.
  • High blood pressureMost of the sodium sits in the soy sauce and ketchup; take a smaller portion of sauce and go easy on extra soy sauce. Ask your clinician about a suitable portion.
  • Kidney diseaseLimit the sauce (sodium and sugar); ask your clinician about portion size.
  • GoutEat occasionally and in smaller portions — pork and rich sauces are best kept modest.
  • Stomach issuesThe sweet, rich sauce can upset a sensitive stomach — eat a small portion and favour the pork and vegetables.
  • Cardiovascular diseaseAn occasional food — the frying oil and pork fat add saturated fat; balance the rest of the day.
  • Fatty liverAn occasional treat — the sauce is sweet and rich; keep the portion small and favour the vegetables.
  • Food allergiesContains wheat (flour), egg, soy (soy sauce) and sulphites (wine). Contains no milk, nuts, fish or shellfish.
  • Special therapeutic dietsIf you follow a prescribed low-sodium or low-sugar diet, take a small portion and ask your clinician whether it fits your plan.

If you have a medical condition, consult your doctor before changing your diet.

Storage & Use

Storage & Use

How to store
Store the pork and the sauce separately in airtight containers; the coating goes soft in the fridge, so reheat the pork in the oven, not the microwave.
In the fridge
Pork 3 days; sauce 5 days.
In the freezer
Pork (unsauced, fried) 1 month; sauced pork does not freeze well.
How to reheat
Reheat the pork in a hot oven at 200°C (400°F) for 8–10 minutes until crisp and steaming; warm the sauce on the stove and toss together just before serving. Reheat to 74°C (165°F).
Freezing recommended
Only the fried, unsauced pork — up to 1 month; sauce it fresh after reheating.
Signs it has spoiled
Sour or off smell, slimy pork, or a sticky, off-tasting sauce.

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