Name: Cơm Lam Tây Bắc (Northwest Vietnamese Bamboo-Tube Sticky Rice)
Prep time: 20 min
Cook time: 60 min
Total time: 440 min
Cuisine: Vietnam
Ingredients: 320 g glutinous rice; 1.2 L cool water for soaking, to be discarded; 360 ml fresh water for the tubes (90 ml per tube); 1 g fine salt; 4 small pieces fresh banana leaf, for loose tube caps; 4 food-safe bamboo tubes, as listed in the equipment; 24 g white sesame seeds; 2 g fine salt

Cơm lam Tây Bắc (Northwest Vietnamese bamboo-tube sticky rice). Sticky rice cooked in bamboo and served with toasted sesame salt. — Sticky rice cooked in bamboo and served with toasted sesame salt.

Yield 4 servings

Cook time About 60 minutes

Passive time 6 hours for soaking rice; bamboo tubes soak for at least 30 minutes during that period

Total time About 7 hours 20 minutes

Calories About 330 kcal per serving

Ingredients ↓

Overview

Cơm Lam Tây Bắc (Northwest Vietnamese Bamboo-Tube Sticky Rice)

Cơm lam is closely associated with the upland communities and foodways of Northwest Vietnam. The dish is defined by a simple technique: rice, water, a fresh bamboo tube and steady heat. Regional accounts describe upland sticky rice cooked beside charcoal and often paired with sesame salt; exact rice varieties, tube sizes and accompaniments vary. This measured home version keeps the rice plain so its chewy texture and faint bamboo aroma lead, with a small bowl of toasted sesame salt at the table.

A long soak helps the grains cook evenly inside the tube. After draining, divide the rice between four sound bamboo sections, add measured water and cover each opening loosely with banana leaf. Slow, regular rotation matters more than a hard flame. Once cool enough to handle, peel away the charred bamboo to reveal the rice cylinder. This method is a practical home adaptation; its proportions and timing are not a single canonical regional formula.

Practical

Tips for successSoak the glutinous rice for the full 6 hours, then drain it very well before filling the tubes. Use only fresh, sound bamboo that is untreated and known to be food-safe. Each section needs one naturally closed end. Keep the rice below halfway in each tube and leave room for steam; cap loosely with banana leaf and never seal the tube airtight. Cook beside moderate coals and rotate each tube every 5–7 minutes. A strong flame can split or burn the bamboo before the center cooks. Check a sample grain from the center. It should be soft and chewy without a hard, chalky core.

Ingredients

Bamboo-tube sticky rice

320 g glutinous rice
1.2 L cool water for soaking, to be discarded
360 ml fresh water for the tubes (90 ml per tube)
1 g fine salt
4 small pieces fresh banana leaf, for loose tube caps
4 food-safe bamboo tubes, as listed in the equipment

Toasted sesame salt

24 g white sesame seeds
2 g fine salt

Method

Rinse the glutinous rice in several changes of water until the water runs mostly clear. Cover with 1.2 L cool water and soak for 6 hours. Drain very thoroughly and mix the rice with 1 g salt.
Wash four sound, untreated food-safe bamboo tubes and soak them in clean water for at least 30 minutes. Divide the drained rice evenly among the tubes, filling each no more than halfway. Add 90 ml fresh water to each and loosely cap the opening with banana leaf. Do not seal the tubes airtight.
Prepare a covered grill or fire pit for moderate indirect heat, about 175–190°C at the cooking area. Place the tubes beside the coals rather than in a high flame. Cook for about 45–60 minutes, rotating every 5–7 minutes so each side heats evenly. Keep the tubes attended. The bamboo should char in places, and the rice should be tender through the center. If a tube splits, remove it from the fire and finish the rice in a covered heat-safe pan with a splash of water.
While the rice cooks, toast the sesame seeds in a dry skillet over low-medium heat, stirring until fragrant and just lightly golden. Let them cool, then crush coarsely with 2 g salt.
Remove the tubes from the heat and let them cool until safe to handle. Peel away the charred outer layer or split the bamboo lengthwise to release the rice. Serve warm with sesame salt.
Refrigerate leftovers within 2 hours in shallow containers at or below 4°C / 40°F and use within 3 days. Reheat leftovers to 74°C / 165°F throughout.

Practical

Practical guidance

Bamboo sizes and wall thickness vary, so use the timing as a guide and check tenderness near the center. Never leave bamboo tubes unattended over fire. If suitable bamboo is unavailable, cook the soaked rice in a steamer or rice cooker according to its glutinous-rice instructions. The rice will be good, though it will not have the bamboo aroma. Sesame salt can be crushed finer or coarser to taste. Keep it separate from the rice until serving so each diner can season their portion. For a fuller meal, Northwest versions may be accompanied by other local foods, but this recipe focuses on the rice and sesame salt. Cool leftover rice promptly; cooked rice should not sit at room temperature for an extended period.

Troubleshooting

The rice is hard in the center: return the tube to moderate heat and rotate it for another 10–15 minutes. If the bamboo has split, transfer rice to a covered pan with a splash of water. The bamboo scorches too quickly: move the tubes farther from the coals and reduce the heat. A little surface charring is expected; a high flame is not. The rice is wet or mushy: drain the soaked rice more thoroughly next time and check that the tubes are not overfilled. The tube should have space for steam to circulate. The rice sticks to the bamboo: allow the tube to cool briefly, then split the bamboo lengthwise and peel it away rather than pulling the rice out in one piece.

Frequently asked questions

What does cơm lam mean? It refers to rice cooked inside a bamboo tube. In Northwest Vietnam, the dish is commonly made with glutinous rice and cooked over fire until the grains are tender and fragrant. Why soak the rice for several hours? Soaking lets the grains take up water before they cook in the tube, helping the center soften before the bamboo exterior chars. The six-hour soak here is a practical midpoint within reported regional preparations that soak rice for 6–8 hours. Can I make it without bamboo? Yes. Steam the soaked, drained rice or use a rice cooker’s glutinous-rice setting, following the appliance directions. That gives you sticky rice without the bamboo aroma or tube-shaped serving.

Nutrition per serving

Rounded estimate calculated from the listed glutinous rice, sesame and salt quantities divided among four servings. Rice variety and water uptake change the cooked serving weight. This is an estimate, not laboratory analysis.

Nutrition per serving

Serving sizeAbout 200–220 g cooked rice with sesame salt
CaloriesAbout 330 kcal
CarbohydrateAbout 66 g
ProteinAbout 7 g
FatAbout 3 g
FibreAbout 3 g
SodiumAbout 300 mg

Allergens and food safety

Contains sesame. Check package labels and cross-contact statements if cooking for someone with a sesame allergy. Use only fresh, sound, untreated bamboo known to be food-safe. Do not use painted, chemically treated, cracked or dry bamboo. Cap tubes loosely and never airtight. Keep them away from high flames, rotate regularly and attend the fire throughout cooking. Refrigerate cooked rice within 2 hours at or below 4°C / 40°F. Reheat leftovers to 74°C / 165°F throughout.

Enjoy

Open the bamboo while the rice is still warm and pass the sesame salt separately.
Serve the tube-shaped rice as part of a shared meal, letting its gentle bamboo fragrance stay at the center.

Cơm Lam Tây Bắc (Northwest Vietnamese Bamboo-Tube Sticky Rice)

Practical

Ingredients

Bamboo-tube sticky rice

Toasted sesame salt

Method

Practical

Practical guidance

Troubleshooting

Frequently asked questions

Nutrition per serving

Nutrition per serving

Allergens and food safety

Enjoy

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Xôi miền Bắc — Hải Phòng (Northern Vietnamese Mung Bean Sticky Rice)

Chè đậu xanh (Vietnamese Mung Bean Sweet Soup)