Sweet Red Bean Paste (Tsubuan)

Course: Condiments, Dessert, How to
Cuisine: Japanese
Keyword: bean paste, sweet red bean
Prep Time: 10 minutes
Cook Time: 1 hour 30 minutes
Total Time: 9 hours 40 minutes
Servings: 600 (g) (600 g = 1.3 lb anko)
Author: Nami
Learn how to make anko sweet red bean paste from scatch. Step-by-step pictures included.


  • 200 g Azuki beans (200 g = 7 oz or a little bit less than 1 cup which is 220g) (I used Hokkaido Dainagon Azuki Beans : bigger than regular azuki)
  • Water
  • 200 g sugar (200 g = 7 oz or 1 cup)
  • Pinch salt (kosher or sea salt; use half if using table salt)


  1. Gather all the ingredients.

    Azuki Beans
  2. Soak the azuki beans overnight (8-12 hours).
    Anko (Tsubuan) 1
  3. Rinse azuki beans.
    Anko (Tsubuan) 2
  4. Use a big saucepan/pot because the amount of azuki beans will double after cooking. Put washed azuki beans in the pot and pour water till 1-2 inch above azuki beans. Turn the heat on high.
    Anko (Tsubuan) 3
  5. When boiling, turn off the heat and cover with lid. Let it stand for 5 minutes.
    Anko (Tsubuan) 4
  6. Throw away water and put the azuki beans into a sieve.
    Anko (Tsubuan) 5
  7. Put the azuki beans back in the pot. Add enough water just to cover the beans and turn the heat on high. Once boiling, turn down the heat to medium low and keep it simmering.
    Anko (Tsubuan) 6
  8. Once in a while push the azuki beans under the water with slotted spoon. Water will evaporate so you need to keep adding water to cover just above the beans. If you put too much water, the beans will move and break. If you need to leave the kitchen, make sure to turn off the heat. You will be cooking for 1+ hour.
    Anko (Tsubuan) 7
  9. Pick one azuki bean and squeeze it with your fingers. If it is smushed easily, it’s done.
    Anko (Tsubuan) 8
  10. Turn up the heat to high and add sugar in 3 separate times. Stir constantly. When you draw a line on the bottom of the saucepan and see the surface for more than 2 seconds, add salt and turn off heat. Anko will thicken more when it cools.
    Anko (Tsubuan) 9
  11. Pour into a container to cool down. Do not leave it in the pot. Cover with plastic wrap and keep in the fridge to store after cool down. If you aren't planning to use it all at once, you can divide it into 100g packages. Wrap in plastic bag and store in Ziploc Freezer bags and can store in fridge for a week and freezer up to a month.
    Anko (Tsubuan) 10

Recipe Notes

Recipe by Namiko Chen of Just One Cookbook. All images and content on this site are copyright protected. Please do not use my images without my permission. If you’d like to share this recipe on your site, please re-write the recipe in your own words and link to this post as the original source. Thank you.