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Overview

Che Hat Sen

Lotus Seed Sweet Soup, Hue Lotus Seed Dessert

This che hat sen recipe simmers tender lotus seeds in a light pandan-scented syrup, the classic sweet soup of Hue. One serving is about 370 g. Serve it warm on a cool evening or chilled over ice in summer.

Che hat sen is the signature sweet soup of Hue, the former imperial city of Vietnam, where the lotus seeds of Tinh Tam Lake are famed for their fragrance and buttery texture. Lotus-seed desserts were served at the Nguyen dynasty court, and the simple soup of seeds in syrup remains a Hue classic, eaten at Tet and through the hot summer months, warm in the evening and iced at midday.

Pairs well with: Unsweetened iced tea and fresh fruit on the side.

Provenance

Vietnam flag Vietnam

Hue Imperial Sweet Soup

East & South Asia

Time Dedication

1h 15m

40m prep • 35m cook

Batch Yield

4 Servings

283 kcal per serving

1 serving ≈ 370 g

Technical Skill

Easy

Easy (One Pot)

Meal Timing & Digestive Fit

Breakfast

Not Advised

Lunch

Inappropriate

Dinner

Inappropriate

Snack & Tea

Ideal Light Bite

Occasions: Summer dessert, Tet holiday sweet, afternoon snack, family meal dessert Cost: Low — about $1–2 per serving at home
Che hat sen — a glass bowl of lotus seeds in amber syrup with a spoon

Hue Imperial Sweet Soup

Photo: Phuong Huy, CC BY-SA 4.0, via Wikimedia Commons

The Heritage Formulary

Measured Ingredients

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

Made with cored lotus seeds simmered gently until buttery, in a clear pandan syrup.

Execution Methodology & Culinary Technique

Step-by-Step Cooking Guide

Active 1h 15m
P

Prep Stage: Soak, Core & Measure

40 Mins • Soaking & Coring

Rinse the dried lotus seeds, cover them with warm water and soak for 30 minutes, then pick out and discard any bitter green cores. Measure the rock sugar and water, and tie the pandan leaf into a loose knot.

Maestro Tip: Removing the green core is the key step — a core left in makes the whole bowl bitter.

  1. 1

    Soak and Core the Seeds

    30 Mins Room temperature, about 22°C (72°F)

    Rinse the dried lotus seeds, cover with warm water and soak for 30 minutes. Drain, then split each seed and pull out the bitter green core in the middle. Rinse again.

    If a core will not come out, cut the seed in half — a leftover core will make the soup bitter.

    Done when: Seeds plumped, cores removed, no green shoots visible.

  2. 2

    Simmer the Seeds

    30 Mins Gentle simmer, about 95°C (200°F)

    Put the seeds in a pot with the 1200 ml of water and bring to a gentle simmer over medium-low heat. Simmer for about 30 minutes, skimming off any foam, until the seeds are soft and buttery when pressed between your fingers.

    Keep the heat low — a hard boil breaks the seeds apart and clouds the syrup.

    Done when: Seeds soft and buttery, splitting easily when pressed.

  3. 3

    Make the Pandan Syrup

    5 Mins Low heat, about 80°C (175°F)

    In a small saucepan, dissolve the rock sugar and the pinch of salt in 100 ml of the hot cooking water with the knotted pandan leaf, over low heat for about 5 minutes, until the sugar has fully dissolved and the syrup smells fragrant. Remove the pandan leaf.

    Do not add the sugar while the seeds are still cooking — sugar added too early toughens them.

    Done when: Sugar fully dissolved, syrup clear and fragrant.

  4. 4

    Combine and Sweeten

    5 Mins Gentle simmer, about 95°C (200°F)

    Pour the syrup into the pot of seeds, stir gently and simmer for 5 minutes more so the seeds take up the sweetness. Taste and add a little more sugar only if you like it sweeter.

    Stir with a gentle hand — the seeds are soft now and break easily.

    Done when: Seeds sweet through, syrup clear and lightly golden.

  5. 5

    Cool and Serve

    5 Mins Warm, about 60°C (140°F), or chilled, about 4°C (40°F)

    Ladle the soup into bowls. Serve warm as it is, or let it cool and chill in the fridge, then serve over crushed ice.

    Chilled che hat sen is the summer version — warm is for cool evenings.

    Done when: Seeds warm or chilled, syrup clear, served in bowls.

Finishing Touches & Plating

Serve the che hat sen warm, or chill it and serve over ice — the seeds should be soft and buttery, floating in a clear, lightly sweet syrup.

Nutritional Physiology & Benefits

Nutrition

Energy

283

kcal / serving

Protein

8g

Complete AA

Carbs

62g

Complex

Fats

1g

Healthy

Per serving (4 servings · 1 serving ≈ 370 g)
Energy283 kcal
Protein8 g
Carbohydrates62 g
Fat1 g
Fibre0.0 g
Sugar30.0 g
Sodium100 mg
Per 100g
Energy76 kcal
Protein2.1 g
Carbohydrates16.8 g
Fat0.3 g
Fibre0 g
Sugar8.1 g
Sodium27 mg

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

Vitamins & minerals: Provides B vitamins and iron from the lotus seeds, with a little potassium. Nutrition is estimated.

Real, Simple Ingredients

Lotus seeds, rock sugar, pandan and water — a short, honest ingredient list with nothing artificial.

A Light, Satisfying Dessert

About 283 kcal per bowl, with slow-release carbohydrate from the lotus seeds for gentle energy.

Protein from Lotus Seeds

The lotus seeds add about 8 g of protein per bowl, which most sweet soups do not have.

Food Pairings

What to Eat With

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

Drinks

Unsweetened Iced Tea

Unsweetened iced tea balances the sweet syrup and refreshes the palate between spoonfuls.

Sides

Fresh Fruit

Fresh mango or lychee alongside adds colour and a different kind of sweetness to the plate.

More Pairings

Crushed Ice

A spoonful of crushed ice in the bowl turns the warm soup into a cooling summer dessert.

Full Menus

As Dessert After a Light Meal

Serve as the sweet finish to a light Vietnamese meal — soup, rice and a bowl of che hat sen.

Complete menu

Serve after a light Vietnamese meal of soup and rice, then a bowl of che hat sen with unsweetened iced tea.

Digestive Guardrails

What NOT to Combine

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

Very Sweet Drinks

Sugary sodas or sweetened milk drinks alongside an already sweet soup can make the whole dessert very sugary. This is general information, not medical advice.

Another Rich Dessert Right After

Heavy, rich desserts straight after a big bowl of sweet soup can feel overwhelming; a light soup like this is best as the only sweet course.

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

Who Should Eat It

Who Should Eat

  • General adultsA light, refreshing dessert — one bowl after a meal is plenty.
  • ChildrenKids usually like the mild sweetness; serve warm, not hot, and let the seeds cool enough to bite safely.
  • ElderlySoft seeds in syrup are easy to eat, but the sugar means one small bowl at a time is wiser.
  • Pregnant womenMade with fully cooked seeds and no alcohol; check with your clinician if you have concerns about sugar.
  • Breastfeeding womenFine in normal portions; the light sweetness is gentle, but keep the overall sugar in mind.
  • AthletesGood quick carbohydrate after training, though low in protein, so pair it with a protein-rich meal.
  • Weight gainSweet and easy to eat, so a full bowl with extra syrup can help add calories.
  • Weight lossMostly sugar water with seeds, so take a small bowl and skip a second helping.

Health Conditions — Adjust or Avoid

Conditions

  • DiabetesAbout 62 g of carbohydrate and 30 g of sugar per bowl; count it carefully and ask your clinician about portion size.
  • High blood pressureLow in sodium (about 100 mg per bowl) but high in sugar; a small bowl is wiser. Ask your clinician for personal advice.
  • Kidney diseaseLow in sodium and modest in protein, but the sugar still calls for a small portion — ask your clinician.
  • GoutLow in purines; a small portion is usually fine — ask your clinician if you are unsure.
  • Stomach issuesLight and easy to digest when warm, though very cold servings can feel heavy; eat slowly. Ask your clinician if symptoms persist.
  • Cardiovascular diseaseVery low in fat and sodium, but the sugar means it is an occasional dessert rather than a daily one. Ask your clinician.
  • Fatty liverThe sugar and energy density make large portions unhelpful; keep it occasional and small. Ask your clinician.
  • Food allergiesContains no major allergen in this plain version; lotus seeds are seeds, not tree nuts. Ask your clinician about any allergy concern.
  • Special therapeutic dietsNot suitable for low-sugar therapeutic diets; ask your clinician or dietitian before including it.

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

Storage & Use

Storage & Use

How to store
Cool completely, then store in a sealed container with the syrup covering the seeds.
In the fridge
Keeps 3 days in the fridge at 4°C (40°F) or below.
In the freezer
Freezes well for up to 1 month, seeds in syrup; thaw in the fridge.
How to reheat
Warm gently on the stove until the centre reaches 74°C (165°F); do not boil hard or the seeds will break.
Freezing recommended
Yes — seeds in syrup.
Signs it has spoiled
Sour smell, cloudy syrup, or a slimy feel on the seeds.

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