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Sweet Azuki Bean Soup With Mochi: A Taste of Home

The first winter I spent away from home, a deep ache for familiarity settled in my bones. The foreign city was exciting, yes, but the neon lights and bustling crowds couldn’t quite fill the void. Then, one evening, my new housemates, a group of kind, adventurous women, gathered in the kitchen. The aroma of simmering azuki beans filled the air, a scent that transported me instantly back to my grandmother’s kitchen. They were making Oshiruko, sweet azuki bean soup with mochi, and as I sat huddled around the steaming bowls, the warmth of the soup, the chewy texture of the mochi, and the shared laughter created a new sense of belonging, a new kind of home.

Recipe Overview

Prep Time: 12 hours 5 minutes (includes soaking time)
Cook Time: 2 hours 30 minutes
Total Time: 14 hours 35 minutes
Servings: 4-6
Dietary Type: Vegetarian (easily adaptable to Vegan)

Ingredients

1 cup azuki beans
6 cups water
½ – 1 cup sugar crystals (depending on taste)
2 pinches salt
1 teaspoon vanilla extract
¾ cup glutinous-rice flour
Water (for mochi dough)
2 tablespoons granulated sugar

Equipment Needed

Large pot
Mixing bowl
Another pot for mochi

Instructions

Begin by preparing the azuki beans. Thoroughly rinse the azuki beans and place them in a large bowl. Cover generously with water and let them soak overnight, or for at least 12 hours. This step is crucial for softening the beans and reducing cooking time.
The next day, drain and rinse the soaked azuki beans. Transfer the beans to a large pot and cover with fresh water. Bring the water to a rapid boil for about 5 minutes. This initial boiling helps to remove any remaining impurities and further soften the beans.
Drain the beans again and rinse them thoroughly. Return the beans to the pot and add the 6 cups of fresh water along with the 2 pinches of salt. Bring the mixture to a boil, then reduce the heat to low and let it simmer gently for approximately 2 hours, or until the azuki beans are completely soft and easily mashed.
During the simmering process, it is important to occasionally skim off any scum that rises to the surface of the soup. This scum can contribute to a bitter taste, so removing it will result in a cleaner, sweeter flavor.
While the azuki beans are simmering, you can prepare the mochi. In a mixing bowl, combine the ¾ cup of glutinous-rice flour and 2 tablespoons of granulated sugar.
Gradually add water to the flour mixture, kneading it continuously until a soft, pliable dough forms. The amount of water needed may vary, so add it slowly until the dough is soft but still holds its shape without being too sticky.
Once the mochi dough is ready, divide it into small, equal-sized portions, about the size of ping pong balls. Gently roll each portion between your palms to form smooth, round balls.
In another pot, bring a generous amount of water to a boil. Carefully drop the mochi balls into the boiling water and reduce the heat to a gentle boil.
The mochi is done when it floats to the surface of the water. This usually takes a few minutes. Once they float, let them cook for another minute or two to ensure they are cooked through.
Using a slotted spoon, carefully remove the cooked mochi balls from the water and set them aside until the azuki bean soup is ready.
After the azuki beans have softened (about 2 hours of simmering), add the ½ to 1 cup of sugar crystals, according to your taste preferences. Start with the smaller amount and adjust as needed, tasting the soup as you go.
Stir in the 1 teaspoon of vanilla extract to enhance the flavor profile of the soup.
Continue to cook the azuki bean soup for another 15 minutes, or until the sugar is completely dissolved and the flavors have melded together beautifully. Stir occasionally to prevent the beans from sticking to the bottom of the pot.
To serve, place a few mochi balls in a bowl and ladle the warm sweet azuki bean soup over them. Serve immediately and enjoy!

Expert Tips & Tricks

Achieve extra creaminess: For a smoother texture, use an immersion blender to slightly blend a portion of the azuki beans before adding the sugar. Be careful not to over-blend, as you still want some texture.
Flavor enhancement: Add a small piece of kombu (dried kelp) to the pot while simmering the azuki beans. This will add a subtle umami flavor that complements the sweetness. Remove the kombu before adding the sugar.
Mochi perfection: To prevent the mochi from sticking together after boiling, you can lightly dust them with potato starch or cornstarch.
Adjusting sweetness: Remember that the sweetness of the azuki beans will intensify as it cools. It’s best to err on the side of slightly less sweet while cooking and adjust later if needed.

Serving & Storage Suggestions

Serve the Sweet Azuki Bean Soup with Mochi warm, garnished with a sprinkle of toasted sesame seeds for added flavor and visual appeal. Leftover azuki bean soup can be stored in an airtight container in the refrigerator for up to 3 days. The mochi, however, is best consumed fresh as it tends to harden upon refrigeration. If you have leftover mochi, you can try pan-frying them with a little butter or toasting them in a toaster oven to restore some of their chewiness. To reheat the azuki bean soup, gently warm it on the stovetop over low heat, stirring occasionally. You can also reheat it in the microwave, but be sure to use a microwave-safe bowl and heat in short intervals to prevent splattering.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	250 kcal	13%
Total Fat	1g	1%
Saturated Fat	0g	0%
Cholesterol	0mg	0%
Sodium	90mg	4%
Total Carbohydrate	58g	21%
Dietary Fiber	2g	7%
Sugars	35g	–
Protein	4g	8%

Note: Nutritional information is an estimate and can vary based on specific ingredients and portion sizes.

Variations & Substitutions

Vegan Adaptation: Ensure your sugar crystals are vegan-friendly, as some are processed using bone char.
Sweet Potato Enhancement: For a twist, add a small amount of mashed cooked sweet potato to the azuki bean soup during the last 15 minutes of cooking. This will add a subtle sweetness and creaminess.
Mochi Alternatives: If you can’t find glutinous-rice flour, you can try using store-bought mochi cakes and adding them to the soup at the end.
Spice It Up: Add a pinch of ground ginger or cinnamon to the soup for a warming, aromatic flavor.

FAQs (Frequently Asked Questions)

Q: Why do I need to soak the azuki beans overnight?
A: Soaking the azuki beans helps to soften them, which reduces the cooking time and makes them easier to digest. It also helps to remove some of the compounds that can cause bitterness.

Q: How do I prevent the mochi from sticking together?
A: Lightly dust the mochi balls with potato starch or cornstarch after boiling to prevent them from sticking together.

Q: Can I use a different type of sugar?
A: Yes, you can substitute sugar crystals with other sweeteners such as brown sugar, maple syrup, or agave nectar. Adjust the amount to your desired sweetness level.

Q: How long will the sweet azuki bean soup last in the refrigerator?
A: The soup will last for up to 3 days in the refrigerator when stored in an airtight container. The mochi is best consumed fresh.

Q: Can I freeze the azuki bean soup?
A: Yes, you can freeze the azuki bean soup for up to 2 months. However, the texture may change slightly upon thawing. It’s best to freeze the soup without the mochi, and then add fresh mochi when serving.

Final Thoughts

I urge you to try this comforting and heartwarming Sweet Azuki Bean Soup with Mochi. It’s a delightful dish that brings together the earthy sweetness of azuki beans and the chewy texture of mochi. It’s a taste of home, a celebration of simple ingredients, and a perfect way to warm up on a chilly day. Don’t be afraid to experiment with variations and make it your own. I’d love to hear your feedback and see your creations! This delightful soup pairs beautifully with a cup of green tea or a light, fruity dessert. Enjoy!

Sweet Azuki Bean Soup With Mochi Recipe