Oshiruko: Easy & Authentic Red Bean Soup Recipe

Have you ever heard of the Japanese food called “Oshiruko (お汁粉)” or “Shiruko (汁粉)”? which we Japanese traditionally have during cold winter months. But first of all, what is Oshiruko?

O-Shiruko (お汁粉)

Oshiruko Red Bean Soup with Mochi Rice Cakes

Oshiruko, or Shiruko, is a traditional Japanese soup dish typically served with plain white rice cake called “Mochi (餅)“.

Oshiruko itself is a simple, sweet bean soup made from Azuki red bean paste and water seasoned with sugar and a pinch of salt. After preparing the soup, we often add toasted or steamed Mochi rice cakes to the soup and enjoy them together.

It is said that the origin of the Japanese red bean soup Oshiruko dates back to about 400 years ago when the original form of Oshiruko was called “Susuri Dango (すすりだんご)”.

In modern times, some traditional Japanese-style sweets parlors called “Kanmidokoro (甘味処)” offer Oshiruko, but we usually have the sweet red bean soup at home.

Why Japanese Eat Red Bean Soup with Mochi in Winter 

Kagami Mochi

One primary reason why Japanese often have Oshiruko soup with Mochi rice cakes in wintertime (especially after New Year’s holidays) is that we have a tradition of displaying “Kagami-Mochi (鏡餅)” in the house during the New Year holiday season.

Kagami Mochi is a traditional round rice cake offered to a god or a Buddha, which in Japan is one of the auspicious New Year’s decorations for good luck.

When New Year’s holidays come to the end, the lucky Mochi rice cake is broken into easy-to-eat pieces and served in Oshiruko or other Mochi dishes. When eating the dish, we wish for a peaceful life throughout the year.

Easy & Authentic Oshiruko Recipe

Oshiruko with Mochi

As I mentioned above, the basic Oshiruko recipe is quite simple. Besides, if you prepare canned Azuki beans beforehand, you can more effortlessly make it. Therefore last, let me introduce the very easy method.

Note that cooked Mochi rice cake is chewy, stretchy, and very sticky, so please be cautious not to choke on it.

Easy & Authentic Oshiruko Soup with Mochi Rice Cakes (2 servings)
Ingredients Quantity
Morinaga Ogura An 15.16 Oz
Water 15.16 Oz
Mochi 2 to 4 pieces
Salt A little
  1. Bake the Mochi rice cakes in a toaster oven until they become swollen and light brown
  2. Put the Ogura An and water in a pot and heat the mixture to the boiling point
  3. Once it has boiled, add a pinch of salt and stir the soup lightly. Then turn off the heat
  4. Place the toasted Mochi rice cakes in a bowl and pour in the Azuki red bean soup
  5. Ready to eat, enjoy the sweet and delicious Oshiruko soup!


Hi, I'm Tomo, a Japanese blogger living in Niigata Prefecture, Japan. For the purpose of enriching your life, I would like to introduce things about Japan on this blog, especially unique Japanese products, cooking recipes, cultures, and facts and trivia.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: