From 長澤家長男's kitchen in Japan.

Originally published on Cookpad Japan as 小豆から作る餅入りおしるこ（ぜんざい）, with US measurements.

Oshiruko (Zenzai) with Mochi Made from Scratch with Azuki Beans

Name: Oshiruko (Zenzai) with Mochi Made from Scratch with Azuki Beans
Yield: Serves 6 to 8 servings
Ingredients: 8.8 oz (250 g) azuki beans; 1 cup (7 oz) / 200 g) sugar; 1 pinch salt; Mochi (as needed); Water (as needed)

長澤家長男 @cook_40046699

Making oshiruko from scratch lets you adjust the sweetness to your liking, and it tastes delicious. There’s a video recipe on the Nagasawa family’s recipe blog.
How this recipe came about:
Store-bought oshiruko is often too sweet, so I decided to make my own.

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Ingredients

Serves 6 to 8 servings

8.8 oz (250 g)azuki beans
1 cup (7 oz)/ 200 g) sugar
1 pinchsalt
Mochi (as needed)
Water (as needed)

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Steps

1

Prepare all the ingredients.
2

Rinse the azuki beans and soak them in water. (I soaked them for 2 hours this time.)
3

After soaking, drain the beans, add fresh water, and bring to a boil.
4

Once boiling, discard the water.
5

Add fresh water (about 3 to 4 times the amount of beans) and simmer over low heat until the beans are tender.
6

When the beans are soft, gradually add the sugar and then the salt. Simmer for about 15 minutes, then turn off the heat and let it sit for a day.
7

After a day, toast the mochi. Cutting them into smaller pieces makes them easier to eat.
8

While toasting the mochi, reheat the sweet red bean soup.
9

Once the soup is hot, ladle it into bowls.
10

Top with the toasted mochi and serve.

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Cooksnaps

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長澤家長男 @cook_40046699

Published in the US on August 06, 2025 14:01

長澤家のレシピブログ管理人の長澤家長男です。大学生時代にアルバイトで料理を覚え、自宅でも料理を研究するようになり、今では大の料理好きです。本業は社会保険労務士です。レシピは父、母、次男のものもアップしています。平成22年6月9日TBSはなまるマーケットで長澤家のレシピブログが紹介され9月に家族で「長澤家のごはん」を出版しました♪