Banh Chung

• Glutinous rice (sticky rice), dry 1kg (2.2 lb)

  The cake's body; must be glutinous rice, not ordinary rice. Substitute: No substitute — ordinary rice will not bind.

  How to choose: Choose plump, opaque-white grains with a clean smell; avoid yellowed or broken grains.

  How to prepare: Rinse in several changes of cold water until the water runs clear, then soak 8 hours or overnight and drain well.

  Required
• Split mung beans, hulled, dry 400g (14 oz)

  Forms the yellow layer around the pork. Substitute: Whole mung beans, hulled after soaking (more fibre, same flavour).

  How to choose: Pick bright-yellow split beans with no stones or dark specks; they should smell faintly nutty, not musty.

  How to prepare: Rinse, soak 4 hours or overnight, drain, then steam 20 minutes until soft enough to mash.

  Required
• Pork belly, boneless, skin on 600g (21 oz)

  The rich centre; fat keeps the cake moist through the long boil. Substitute: Pork shoulder (leaner, slightly drier cake).

  How to choose: Choose a piece with even layers of meat and fat and firm, pale-pink flesh; avoid grey or sour-smelling meat.

  How to prepare: Cut into 4 thick pieces of about 150 g each, then rub with fish sauce, black pepper and half the minced shallot and rest 30 minutes.

  Required
• Shallots 100g (3.5 oz)

  2–3 shallots, finely minced; seasons the pork. Substitute: Red onion, finely minced.

  How to choose: Firm, heavy shallots with dry papery skins and no soft spots or sprouting.

  How to prepare: Peel and mince finely; half goes on the pork, the rest is kept aside.

  Required
• Fish sauce 30ml (2 tbsp)

  Seasons the pork; use a certified gluten-free brand to keep the dish gluten-free. Substitute: Light soy sauce (adds colour, different flavour, contains wheat unless labelled gluten-free).

  How to choose: A clear amber sauce with a clean fish aroma; first-press (nuoc mam nhi) is best.

  How to prepare: Measure out and pour over the pork pieces with the pepper and shallot.

  Required
• Fine sea salt 12g (2 tsp)

  8 g for the rice, 4 g for the mashed mung bean. Substitute: Fine table salt, same weight.

  How to choose: Clean white crystals with no damp clumps.

  How to prepare: Divide as noted: stir 8 g through the drained rice and 4 g through the mashed mung bean.

  Required
• Black pepper, coarsely ground 8g (2 tsp)

  The cake's signature warmth; be generous. Substitute: White pepper (milder, less visible).

  How to choose: Whole peppercorns ground fresh give the strongest aroma; pre-ground is acceptable if fragrant.

  How to prepare: Grind coarsely and rub over the pork pieces with the fish sauce.

  Required
• Dong leaves (la dong) 8 large leaves

  Wrapping only — not eaten; gives the rice its green tint and leafy aroma. Substitute: Large banana leaves, wiped clean and softened over heat.

  How to choose: Choose large, un-torn, deep-green leaves; wipe both sides clean with a damp cloth.

  How to prepare: Wipe clean, trim the thick centre rib flat with a knife, and briefly pass each leaf over a flame or dip in hot water until pliable.

  Required
• Bamboo string 8 lengths (about 1 m / 3 ft each)

  Ties each cake in the traditional crosshatch; also used to cut slices. Substitute: Kitchen twine.

  How to choose: Soak dried bamboo string in water until flexible so it does not snap when pulled tight.

  How to prepare: Soak until pliable, then cut into lengths of about 1 m each.

  Required
• Water As needed

  For soaking and for the 8-hour boil; keep a kettle of boiling water ready for topping up.

  How to choose: Clean tap water is fine.

  How to prepare: Use cold water for soaking; bring a separate kettle to the boil for topping up the pot.

  Required

Estimated cost: Low — about $1–2 per serving at home (USD)

info A good banh chung holds its square shape when cut, with clear layers of green-tinted rice, yellow mung bean and pork in the middle.

Execution Methodology & Culinary Technique

1. 1

   Soak the Rice and Mung Beans

   8 Hours • Overnight Soak Room temperature, ~20°C (68°F)

   Rinse the glutinous rice in several changes of cold water until the water runs clear, then cover with cold water and soak 8 hours or overnight. Rinse the split mung beans the same way and soak 4 hours or overnight. Drain both well before using.

   Do not skip the soak: dry rice packed into the cake will stay hard in the centre even after 8 hours of boiling.

   Done when: Rice grains are plump and opaque white; mung beans are swollen and split easily between the fingers.

2. 2

   Season the Pork and Steam the Mung Beans

   30 Mins Steam, 100°C (212°F)

   Cut the pork belly into 4 thick pieces of about 150 g each. Rub each piece all over with the fish sauce, black pepper and half the minced shallot, then rest 30 minutes. Meanwhile steam the drained mung beans for 20 minutes until completely soft, then mash with 4 g of salt into a thick, smooth paste. Stir the remaining 8 g of salt through the drained rice.

   Mash the mung beans while they are still hot — they turn smooth with far less effort.

   Done when: Mung bean paste holds its shape on a spoon; pork is evenly coated and smells of pepper and fish sauce.

3. 3

   Wrap the Square Cakes

   45 Mins Room temperature, ~20°C (68°F)

   Line a square cake frame (about 15 cm / 6 in) with 2 crossed dong leaves, shiny side down. Spread in a layer of salted rice, then a layer of mung bean paste, then one piece of pork in the centre, then more mung bean paste, then a final layer of rice — each layer pressed flat and even. Fold the leaves over the top, lift the frame off, and tie the parcel firmly with bamboo string in a crosshatch of 3 lines each way.

   Press each layer firmly with the back of a spoon and leave no air pockets — loose packing is what makes a cake fall apart when cut.

   Done when: Each parcel is a firm, neat square with the leaves pulled tight and the string holding its shape.

4. 4

   Boil Low and Slow

   8 Hours • Gentle Boil Gentle boil, 100°C (212°F)

   Pack the 4 cakes snugly into a large pot, cover completely with cold water, and bring to a rolling boil. Reduce to a steady gentle boil, cover with a lid, and cook 8 hours, topping up with boiling water from the kettle whenever the level drops — the cakes must stay submerged the whole time. The long boil cooks the rice through, melts the pork fat into the mung bean, and takes the pork far past the 74°C (165°F) safe temperature.

   Set a timer every hour to check the water level; if a cake ever sits above the water it will cook unevenly and dry out on top.

   Done when: A cake lifted out feels heavy and firm, and the leaves have darkened to olive-green.

5. 5

   Press, Cool and Cut

   8 Hours Pressing • 15 Mins to Cut Cool to room temperature, ~20°C (68°F)

   Lift the cakes out, rinse the leaves briefly under cold water, and press each cake under a heavy board or weight for 8 hours or overnight — pressing is what sets the square shape and firms the rice. Unwrap, then cut each cake into 4 quarters with a length of bamboo string pulled through the cake (the traditional method) or a thin, wet knife. One quarter is one serving of about 200 g.

   Cut with string, not a sawing knife: pull the string down in one smooth motion for clean layers of rice, mung bean and pork.

   Done when: The cut face shows clear layers — pale green rice, yellow mung bean and pork in the middle — and the slice holds its shape.

vital_signs Nutritional Physiology & Benefits

Nutrition

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

Vitamins & minerals: B vitamins and iron (pork belly), folate and magnesium (mung beans), manganese (black pepper). Nutrition is estimated.

restaurant Food Pairings

What to Eat With

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

warning Digestive Guardrails

What NOT to Combine

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

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

Who Should Eat It

Who Should Eat

• General adultsA filling festive lunch — one quarter cake (about 200 g) is a full serving.
• ChildrenSuitable in small portions; cut into small squares and serve with pickled scallions only if they like sour flavours.
• ElderlySoft and easy to chew, but very filling — serve a smaller portion and go easy on the salty pickles.
• Pregnant womenGenerally suitable when freshly cooked and served hot; the pork is boiled for 8 hours, well past safe temperatures. Eat a moderate portion and check with your clinician if unsure.
• Breastfeeding womenGenerally suitable; the protein, iron and energy support recovery — keep portions moderate.
• AthletesA strong energy-dense meal after hard training, with carbohydrate for glycogen and about 14 g of protein per serving.
• Weight gainA good choice — energy-dense at 519 kcal per quarter cake, with protein and fat to support extra intake.
• Weight lossEat a smaller slice (about 100 g) with plenty of cucumber, herbs and pickled scallions, and save the rest for another day.

Health Conditions — Adjust or Avoid

Conditions

• DiabetesGlutinous rice raises blood sugar quickly — keep to a small slice (about 100 g), pair with vegetables, and check with your clinician about portion size.
• High blood pressureThe cake is salty (about 459 mg sodium per serving) and the pickled sides add more — eat a modest portion and skip extra fish sauce. Ask your clinician if unsure.
• Kidney diseaseLimit the portion — the cake is high in sodium and the pork and mung beans add protein and potassium. Ask your clinician about portion size.
• GoutEat occasionally and in small portions — pork belly and mung beans are both rich in purines. Ask your clinician if unsure.
• Stomach issuesSticky rice and fatty pork digest slowly and can feel heavy; eat a small portion, chew well, and skip the pickled scallions if your stomach is sensitive.
• Cardiovascular diseasePork belly is high in saturated fat — treat this as an occasional festive food in a small portion, with vegetables on the side. Ask your clinician if unsure.
• Fatty liverKeep the portion small and occasional; the combination of dense carbohydrate and pork fat is heavy for the liver. Ask your clinician if unsure.
• Food allergiesContains pork and fish (fish sauce). Contains mung bean, a legume — people with legume allergy should avoid it. Naturally gluten-free, but confirm the fish sauce brand is certified gluten-free if you have coeliac disease.
• Special therapeutic dietsIf you follow a prescribed low-sodium, low-fat or low-purine diet, eat only a small portion or skip the pork centre, and check with your clinician.

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

kitchen Storage & Use

Storage & Use

How to store

Keep the cake wrapped in its leaves, or wrap slices tightly in cling film or an airtight container.

In the fridge

Up to 5 days in the fridge, wrapped in leaves or sealed.

In the freezer

Up to 3 months, wrapped tightly in cling film and foil; thaw overnight in the fridge.

How to reheat

Steam slices 15–20 minutes or pan-fry in a dry non-stick pan until heated through to 74°C (165°F) and lightly crisp at the edges.

Freezing recommended

Yes — banh chung freezes well for up to 3 months.

Signs it has spoiled

Sour or off smell, slimy surface, or mould on the rice or leaves.