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The Sweet Red Bean Soup My Dad's Made 100,000 Times

紅豆沙
Prep: 30 minCook: 150 minTotal: 180 minServes: 6

Ingredients

14 ozred bean
2 ozlotus seed
2 ozdried lily bulb
2 ozrock sugar
6 ozbrown sugar
1 piecedried mandarin peel
4 cupwater
Seasoning
0.50 tspsalt

Instructions

1
Wash & soak ingredients

Rinse the red beans (14 oz) with clean water and pour out the water. You'll likely see some dust and debris. Rinse again with clean water and pour out the water from the second rinse. Then, soak them in clean water, enough to submerge the red beans, for at least an hour, up to overnight.

Don't soak them more than a day, though, or they may sprout.

Wash the lotus seeds (2 oz) and dried lily bulbs (2 oz) as well, and soak them the same way, in clean water, enough to submerge the ingredients, for at least an hour.

2
Boil ingredients

In a large pot, add water (4 cup), salt (0.50 tsp), the soaked beans, and the dried mandarin peel (1 piece). Turn the heat all the way up to bring the water to a boil. Once it reaches a boil, turn the heat down. Simmer on the lowest heat for half an hour.

After simmering for half an hour, add the soaked lotus seeds and dried lily bulbs. Then continue to simmer, still at the lowest heat, for another hour.

After an hour and a half, the beans should be soft and tender. You can test them by scooping a bean out and squeezing it. If it's tender, your fingers should easily crush it.

For an even softer texture, you can simmer it for even longer. On the other hand, if you prefer firmer beans, cut the simmering time and only cook the beans to your preferred firmness.

3
Add sugar & serve

Once you're happy with the texture of the beans, it's time to sweeten the soup. Add rock sugar (2 oz) and brown sugar (6 oz). Stir to make sure the sugars dissolve. Large pieces of rock sugar may take a while.

If you'd like to thicken the soup, there are two ways to do so. First, you can take a ladle and press down on the beans. The crushed beans will thicken the soup and make it "sandy", as the name refers to.

The other method is our reliable cornstarch slurry. Mix up a 1:2 ratio of cornstarch to water, fulling dissolving the powder to avoid clumping. Slowly pour the slurry in while stirring, and it will thicken up the soup.

If the soup is too thick, simply dilute with more water.

Give it a taste. You can add more sugar if it's not sweet enough. Once you're happy with it, transfer to a serving bowl and enjoy!

Store any leftovers in the refrigerator. Reheat to enjoy again, or try it cold!

Recipe by Daddy Lau · 2× James Beard Award Winner · madewithlau.com
Sweet Red Bean Soup (紅豆沙)

The Sweet Red Bean Soup My Dad's Made 100,000 Times

紅豆沙
▶ 197.4K views on YouTube
👍 3.4K likes
Prep
30 min
Cook
150 min
Total
180 min
Serves
6
Daddy Lau
By Daddy Lau · 2x James Beard Awards · 60+ years
Published Sep 2022 · Updated Nov 2024

Why this recipe

The story
Sweet Red Bean Soup (紅豆沙) — Daddy Lau
Daddy Lau

Most sweet red bean soup recipes online are tested only a handful of times. My dad used to make this dish multiple times a day, every day, for 60+ years and can make this in his sleep.

I know you'll love it as much as our community does! This recipe has over 197.4K views, 3.4K likes on YouTube.

Beans for dessert? Absolutely! In fact, red beans are especially common as a dessert ingredient in many cuisines.

This dessert in particular cooks the red beans thoroughly, intentionally bursting them to get their hearty, sandy texture out to help thicken the soup, hence the name 紅豆沙 which means Red Bean Sand.

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Ingredients

Serves6
Understanding Flavor
FUNDAMENTALS
Understanding Flavor
Dive Deeper →
Main Ingredients
14 ozred bean
2 ozlotus seed
2 ozdried lily bulb
2 ozrock sugar
6 ozbrown sugar
1 piecedried mandarin peel
4 cupwater
Seasoning
0.50 tspsalt

Which kind of sugar?

For this recipe, we're using two types of sugar: rock sugar and brown sugar.

Rock sugar (Amazon) is a mild sugar that comes in a crystal chunk. It's widely used in Cantonese dessert soups like this, as well as braised dishes and sometimes to sweeten tea.

Another type of rock sugar that's common in Cantonese cooking is 片糖, slab sugar (Amazon), and if you have that instead, definitely use it for this soup! It's the same as rock sugar but with a stronger molasses flavor.

Brown sugar is probably much more familiar to you. The color comes from having molasses sprayed over white sugar, so there's just a bit more caramel-y depth to its sweetness compared to typical white granulated sugar.

If you don't have these sugars, or you can't have these, you can definitely use granulated sugar or other sweeteners!

Lotus seeds and lily bulbs in my soup?

These ingredients are both tasty and meaningful. Lotus seeds are associated with the newlywed blessing of having a child soon. Dried lily bulbs are associated with enjoying 100 years of happiness. Sounds great!

Their pale color also serves as a striking contrast in a bowl of red bean soup, and the ingredients add texture as well. If you can find them, definitely add them to this soup. If you can't, it's fine to omit them.

Instructions

3 steps · click any step to scrub ↑
1

Wash & soak ingredients

scroll to play this step

Rinse the red beans (14 oz) with clean water and pour out the water. You'll likely see some dust and debris. Rinse again with clean water and pour out the water from the second rinse. Then, soak them in clean water, enough to submerge the red beans, for at least an hour, up to overnight.

Don't soak them more than a day, though, or they may sprout.

Wash the lotus seeds (2 oz) and dried lily bulbs (2 oz) as well, and soak them the same way, in clean water, enough to submerge the ingredients, for at least an hour.

The 10 Essential Cutting Techniques
LESSON 3.3
The 10 Essential Cutting Techniques
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2

Boil ingredients

scroll to play this step

In a large pot, add water (4 cup), salt (0.50 tsp), the soaked beans, and the dried mandarin peel (1 piece). Turn the heat all the way up to bring the water to a boil. Once it reaches a boil, turn the heat down. Simmer on the lowest heat for half an hour.

After simmering for half an hour, add the soaked lotus seeds and dried lily bulbs. Then continue to simmer, still at the lowest heat, for another hour.

After an hour and a half, the beans should be soft and tender. You can test them by scooping a bean out and squeezing it. If it's tender, your fingers should easily crush it.

For an even softer texture, you can simmer it for even longer. On the other hand, if you prefer firmer beans, cut the simmering time and only cook the beans to your preferred firmness.

3

Add sugar & serve

scroll to play this step

Once you're happy with the texture of the beans, it's time to sweeten the soup. Add rock sugar (2 oz) and brown sugar (6 oz). Stir to make sure the sugars dissolve. Large pieces of rock sugar may take a while.

If you'd like to thicken the soup, there are two ways to do so. First, you can take a ladle and press down on the beans. The crushed beans will thicken the soup and make it "sandy", as the name refers to.

The other method is our reliable cornstarch slurry. Mix up a 1:2 ratio of cornstarch to water, fulling dissolving the powder to avoid clumping. Slowly pour the slurry in while stirring, and it will thicken up the soup.

If the soup is too thick, simply dilute with more water.

Give it a taste. You can add more sugar if it's not sweet enough. Once you're happy with it, transfer to a serving bowl and enjoy!

Store any leftovers in the refrigerator. Reheat to enjoy again, or try it cold!

Frequently Asked Questions

Made with love ❤️

The Lau Family

We started Made With Lau to celebrate Cantonese culture and honor the legacy of our wonderful parents, Jenny and Chung Sun Lau.

Our hope is that these recipes and stories help you spread the joy, love, and nostalgia that I felt growing up.

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A family-run Cantonese cooking project from Daddy Lau, Randy Lau, and a small team in the Bay Area.

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