How to Make Japanese Sweet Potato Yokan



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Are you ready to indulge in a decadent and unique Japanese treat? Look no further than Japanese Sweet Potato Yokan. With its rich, creamy texture and subtly sweet flavor, this traditional Japanese dessert is the perfect way to satisfy your sweet tooth. Made from a mixture of mashed sweet potato, sugar, and agar-agar, Yokan is a beloved delicacy that has been enjoyed for centuries. So why not try your hand at making this delightful treat yourself? With just a few simple ingredients and some patience, you can create a dessert that will transport your taste buds straight to Japan. 

This recipe is from Wagashi no Waseda-ya. Wagashi no Waseda-ya provided this video. Thank you for your cooperation. The Japanese in this video has been translated into English. (Permission is granted by Waseda-ya).


Ingredients (Ratio)

  • Sweet Potato: 100 
  • Granular Sugar: 15 
  • Salt: 0.1 (Make sure you do not put too much salt. )

How to make Japanese Sweet Potato Yokan

  • Peel the skin of the sweet potato.
  • Put the peeled potato in water so that it does not react with the air and change color.
  • Cut it into slices.
  • Put it in water for about 2 hours to get rid of any impurities.
  • Strain the potatoes and throw away the water.
  • Move the potatoes into a steamer.
  • Steam for 1 hour.
  • Check with a toothpick or chopsticks to see if they are soft.
  • Put the steamed sweet potatoes in a bowl and mash them. 
  • Add the sugar and mix. 
  • The sugar should melt and mix easily due to the heat from the potatoes.
  • Move the mashed sweet potato mix to a microwave safe bowl.
  • To make sure that it heats evenly, make a small hole in the middle of the bowl.
  • Cover the bowl with wrap and microwave for 2 minutes.
  • Add the salt and mix.
  • Move the mixture to a Tupperware container before the mixture gets cold.
  • If the mixture gets cold, it will harden and become difficult to work with.
  • Put a cloth on top of the mold and press it into shape.
  • You may also use wrap.
  • Wait for the Yokan to cool off.
  • If the bottom of the mold is cool, then it is ready. 
  • When the Yokan cools off, there may be a gap between the mold and the Yokan.
  • Cut it.
  • It was easy wasn’t it?
  • Make sure that refrigerate the Yokan and eat it within a few days.

Making Japanese Sweet Potato Yokan is a delightful and rewarding experience that is sure to impress your taste buds and those of your loved ones. With its creamy texture and subtle sweetness, this traditional Japanese dessert is a perfect blend of simplicity and sophistication. By following the simple steps we’ve provided, you can easily recreate this beloved delicacy in the comfort of your own home. So why not give it a try and share this unique and delicious treat with your friends and family? Whether you serve it as a dessert, snack, or gift, Japanese Sweet Potato Yokan is a true gem of Japanese cuisine that you won’t want to miss. We hope you enjoyed this recipe and invite you to stay tuned for more exciting Japanese food and culture on our blog. Happy cooking and happy eating!

Japanese Translation here>>>芋ようかんの作り方を英語で!和菓子屋の本格レシピ

To learn more about wagashi, please click here.>>>Japanese Sweets (Wagashi): Higashi and Omogashi

The kindle version is difficult to read because the font size is not adjustable. I recommend that you purchase the paper book instead of the kindle version.

Click here>>>Tanoshii Wagashi: Little Bites of Japanese Delights

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