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Kuih Kosui / Kue Lumpang (2 Flavors)

written by Marvellina Updated: November 28, 2021
13.8K
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Learn how to make traditional soft and bouncy kuih kosui flavored with pandan leaves and gula Melaka with nice dimples in the middle of the cakes. Natural colors from pandan juice and coconut sugar.
Kuih Kosui / Kue Lumpang (2 Flavors)

KUIH KOSUI PANDAN AND KUIH KOSUI GULA MERAH/MELAKA

Kuih kosui or we write it as kue kosui among the Indo Chinese, is one of my favorite childhood kue basah (literally means wet cakes). It is known as kue lumpang in native Indonesian language. Whatever you call it, it means the same thing 🙂 I made two flavors, one with pandan and another one with gula merah/gula Melaka. I like both equally!
Kuih kosui is very economical to make. The kuih is characterized by its “dimple” in the middle of the cake, lightly sweet taste, soft, yet wobbly and slightly bouncy texture and then topped with slightly salty grated coconut topping. OMG! I love this sweet-salty combo!

DO I NEED ALKALINE WATER TO MAKE KUIH KOSUI ?

Alkaline water (lye water) is usually added to food for that chewy texture (think ramen noodles!). I have been playing with different combination of flours and water amount. The cake is reasonably soft with slight bounce. However, if you want it bouncier, adding alkaline water will achieve that “QQ” texture.

Kuih Kosui / Kue Lumpang (2 Flavors)

WHY YOU’LL LIKE THIS KUIH KOSUI RECIPE

1. Practical
I’ve tried several recipes throughout the year that require to heat the batter either in the microwave or the stove until just slightly thickened. I found this troublesome and it’s hard to control the thickening process and the batter ends up with lumps. This recipe doesn’t need that step!
2. Nice dimples (lompang/lumpang)
Some people will say that a nice kuih kosui must have “dimple” in the middle of the cake after steaming. This recipe will give you the dimples 😉 Though really, it doesn’t change a taste at all. Just a nice dimple when you topped with coconut, you can’t see it LOL!
3. No special cups needed (if you don’t have them)
I don’t have the individual cups that look like teacups to steam kuih kosui in. I just use small muffin tins to steam the cake and it worked out just fine
4. Kuih kosui stays soft and wobbly even after refrigeration
I store them in the refrigerator and tried it out without reheating the next day and the texture is still really good. Of course, the longer you store them, the texture will deteriorate, but once you reheat, it will be good again
Kuih Kosui / Kue Lumpang (2 Flavors - No Alkaline Water). Learn how to make traditional soft and wobbly kuih kosui flavored with pandan leaves and gula Melaka with nice dimples and no alkaline water needed #kuihkosui #kuihkosuipandan #nyonyarecipes #kuihmuih

TOP TIPS YOU NEED TO KNOW

1. Let the boiled water cooled down
My friend shared with me that you don’t want the water to be boiling when you pour it into the flour as that will cook the flour and creates lumps. The warm water helps to create the dimples in the cake. It also improves the texture of the cake
2. Only fill the cups when you are ready to steam them
If you fill the cups with batter and let them sit waiting or the steamer for too long, the flour will sink to the bottom and guess what, your cake will not cook properly. So, please don’t do that. Only fill the cups with batter just before steaming
3. Always stir
When you are ready to pour into the cups, give the batter a good stir. For the same reason I mentioned in no.2. The flour tends to sink to the bottom
Kuih Kosui / Kue Lumpang (2 Flavors)

HOW TO MAKE KUIH KOSUI EASILY FROM SCRATCH

STEP ONE: PREPARE THE BATTER
1. Bring water to a boil in a saucepan and stir until sugar dissolves. Remove from the heat and let it cool down for 15 minutes
2. Get the steamer ready. Steam the grated coconut and salt mixture for 10 minutes. Set aside. If using cups, oil the cups or muffin tins on all side for easier release later. Steam empty cups over high heat for 5 minutes before pouring the batter
3. Mix flour/starch in a mixing bowl. Add sugar and salt and whisk to mix and then add pandan juice (for pandan flavor).
3. Once the liquid has cool down and feels lukewarm, pour into the flour mixture and stir to mix until batter is smooth. Add alkaline water if you choose to use
Kuih Kosui / Kue Lumpang (2 Flavors - No Alkaline Water)
STEP TWO: STEAMING
1. Pour the batter into the preheated cups, about 3/4 full
2. Steam over high heat for 12-15 minutes for smaller cakes and about 18 minutes for larger cakes.
Kuih Kosui / Kue Lumpang (2 Flavors)
Kuih Kosui / Kue Lumpang (2 Flavors)
STEP THREE: UNMOULDING AND SERVING
1. Let kuih kosui cool down for 5 minutes and if you have a small rubber spatula, gently unmould the kuih kosui by running the spatula around the edge and lift it up
Kuih Kosui / Kue Lumpang (2 Flavors)
2. Top with grated coconut
Kuih Kosui / Kue Lumpang (2 Flavors)
Kuih Kosui / Kue Lumpang (2 Flavors). Learn how to make traditional soft and wobbly kuih kosui flavored with pandan leaves and gula Melaka with nice dimples and no alkaline water needed #kuihkosui #kuihkosuipandan #nyonyarecipes #kuihmuih

HOW TO STORE KUIH KOSUI

It’s winter when I made this and the humidity is super low and so I was able to let them cool down completely and then cover with plastic wrap and keep at room temperature until the next day. I put them in the refrigerator after that. The texture was still good after refrigeration without reheating, but feel free to reheat in a steamer for 5 minutes or in the microwave for few seconds. Kuih Kosui cannot be frozen!

Kuih Kosui / Kue Lumpang (2 Flavors)

 

Kuih Kosui / Kue Lumpang (2 Flavors - No Alkaline Water). Learn how to make traditional soft and wobbly kuih kosui flavored with pandan leaves and gula Melaka with nice dimples and no alkaline water needed #kuihkosui #kuihkosuipandan #nyonyarecipes #kuihmuih

We just love the soft and bouncy texture of kuih kosui!
Kuih Kosui / Kue Lumpang (2 Flavors)

Kuih Kosui / Kue Lumpang (2 Flavors)

Kuih Kosui / Kue Lumpang (Pandan or Gula Merah)

Prep Time 35 minutes mins
Cook Time 30 minutes mins
Total Time 1 hour hr 5 minutes mins
Servings 15 pieces of 2-inch cake
4.7 from 18 reviews
REVIEW & RATE PRINT

Ingredients

Version 1 (softer in texture):

  • 60 gr rice flour
  • 30 gr tapioca flour
  • ⅛ tsp salt

Version 2: (bouncier in texture):

  • 45 gr rice flour
  • 45 gr tapioca flour
  • ⅛ tsp salt

For pandan flavor:

  • 80 gr sugar
  • 100 ml boiling water let cool for 15 minutes
  • 100 ml pandan juice
  • ½ tsp alkaline water

For gula merah flavor:

  • 200 ml water let cool for 15 minutes
  • 100 gr gula Jawa/gula Melaka (cut into smaller pieces) or use coconut sugar
  • ½ tsp alkaline water

Toppings:

  • 60 gr unsweetened grated coconut
  • ¼ tsp salt

Instructions
 

Prepare the topping:

  • Steam the coconut with salt over high heat for 10 minutes. Remove and set aside 

Preheat the cups/muffin cups in the steamer:

  • Brush the cups with some oil on all sides. Bring water in the steamer to a boil and place the empty cups in the steamer and let them heat up for 5 minutes while you are preparing the batter. This step is also important to prevent the flour/starch from separating when you steam

Prepare the batter (for pandan flavor):

  • Bring water to a boil and stir in sugar and stir until sugar dissollves. Let it cool down for 15 minutes so it should feel lukewarm after that. The warm water will stabilize the starch/flour and they won't separate when you steam, yet we don't want it to be hot boiling that it cooks the starch/flour into a dough
  • Mix flour/starch in a mixing bowl. Add salt, pandan juice (for pandan flavor) and add the lukewarm sugar water. Stir into a smooth batter. Add alkaline water if you choose to use

Prepare the batter (for gula Melaka flavor):

  • Combine flour/starch and salt in a mixing bowl. Combine the sugar and water in a saucepan and cook over medium heat until sugar melts. Strain the mixture and let it cool down to lukewarm and then pour over the flour mixture and stir into a smooth batter. Add alkaline water if you choose to use

Steaming:

  • Pour the batter into preheated cups, about 3/4 cup full and steam over medium heat for 18-20 minutes for large cakes (if using muffin cups) or 12-15 minutes for smaller cakes
  • If your steamer cannot fit all at the same time, do not pour the mixture ahead and let them sit in the cups. The flour tends to settle at the bottom after a while. Only pour the batter to the cups right before steaming AND stir the batter each time before pouring. This is important or your kuih kosui won't turn out right
  • After steaming, remove from the steamer and let them cool down for 5 minutes. The middle may still appear to have a bit of liquid pooling, but they will dry up as they cool down. They can be easily removed by running a small rubber spatula around the edge and lift them up. Sprinkle with the coconut toppings and serve
  • Repeat with the next batch of steaming if you need to and make sure the steaming water is back to a rolling boil before steaming and remember to preheat the cups

RECOMMEDED TOOLS

Food Steamer

*Nutrition facts are just estimates and calculated using online tools*

Nutrition Facts
Kuih Kosui / Kue Lumpang (Pandan or Gula Merah)
Serving Size
 
1 serving
Amount per Serving
Calories
111
% Daily Value*
Fat
 
3
g
5
%
Saturated Fat
 
2
g
13
%
Polyunsaturated Fat
 
1
g
Monounsaturated Fat
 
1
g
Sodium
 
93
mg
4
%
Potassium
 
28
mg
1
%
Carbohydrates
 
22
g
7
%
Fiber
 
1
g
4
%
Sugar
 
10
g
11
%
Protein
 
1
g
2
%
Vitamin C
 
1
mg
1
%
Calcium
 
2
mg
0
%
Iron
 
1
mg
6
%
* Percent Daily Values are based on a 2000 calorie diet.
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20 comments

Elaine Elue July 18, 2023 - 10:09 pm

Can I omit alkaline water? What’s the purpose for akaline water?

Reply
Marvellina July 20, 2023 - 11:34 am

Hi Elaine, the alkaline gives it the “QQ/bouncy” texture. You can omit it if you want. The texture will be a bit different if you don’t mind it.

Reply
Celine Cho July 16, 2023 - 4:37 am

Hi!
I wonder For the pandan flavour- if I can boil the sugar in the water first,then cool it for 15 min & proceed with mixing into the flour,salt,pandan juice & stir to form smooth batter? Will this disrupt the end result of this kuih? if not, I worry that it may take a long time to dissolve the sugar in the already cooled water. Pls advise. TQ!

Reply
Marvellina July 16, 2023 - 10:21 am

Hi Celine, Yes, you can boil the sugar in the water. It shouldn’t be a problem!

Reply
Esther January 29, 2023 - 12:04 pm

Hi, i cant source fresh pandan leaves in NZ. Can i use the store buy pandan essence instead? If yes then how much do i need to use?

Reply
Marvellina January 30, 2023 - 12:04 pm

You can use the essence. I think 1 teaspoon would be sufficient.

Reply
Lee November 20, 2022 - 9:49 pm

No instructions for the gula melaka flavour. What to do with the gula melaka

Reply
Marvellina November 21, 2022 - 8:37 pm

Sorry for missing out on that information. I have added it accordingly!

Reply
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