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Purple Sweet Potato Doughnuts (Kuih Keria)

Here is another popular Malaysian tea time snack, sweet potato doughnuts coated with crystalized sugar. In this recipe, I used purple sweet potatoes; however, if you prefer using regular sweet potatoes, I did post the recipe for it back in 2009. Apparently, using regular sweet potatoes with crystalized sugar is a more traditional method of making this snack. This is a simple and yummy snack which can be enjoyed with coffee or tea anytime of the day, in my opinion. Try it.

Purple Sweet Potato Doughnuts (Kuih Keria)


4 (About 600g)Purple Color Sweet Potatoes, scrubbed
100 g All-Purpose Flour
30 g Tapioca Flour
A Pinch of Sea Salt

Crystalized Sugar
100 g Granulated Sugar
3 Tbsp Water

Oil for deep-frying
Extra All-Purpose Flour for dusting


Boil the sweet potatoes until soft and cool completely. Mash and mix with all the flours and salt. Divide the dough into 12 portions. Shape into doughnut rings and dust with some flour.

Deep fry the doughnuts over medium heat until golden brown. Drain the doughnuts and set aside.

Boil the sugar and water until a thick syrup consistency are obtained. Toss in the fried doughnuts into the sugar syrup until well coated. The sugar will crystallize once it cool down.


  1. These look fabulous! I've never heard of purple sweet potatoes, but the color is wonderful! Nana Clare's Kitchen

  2. love that gorgeous colour of the purple sweet potatoes. I wish I could get them here in london..

  3. Hello! My son and LOVE purple potatoes. So glad to see your recipe here. I must give this a try soon. Thanks.

  4. I love purple potatoes...i never thought of putting it in a donut.

  5. This is such a great idea! I have a gluten allergy and was wondering if the recipe would work the same if I used rice flour or an alternative?

  6. Ok so I tried to make these today. I followed the directions exactly, but the middles of the donuts are still doughy...any tips??

    1. Jessie, fry the doughnut a little longer with lower temperature, it should work.

  7. Do you know to get the purple sweet potatoes


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