Welcome! If you’ve ever savored the delightful sweetness of Asian desserts, you’ve likely enjoyed red bean paste. This guide will show you how to create an authentic, homemade Red Bean Paste Recipe, also known as Anko. Forget store-bought versions; making it at home is simpler than you think and puts you in complete control of the sweetness and texture.
Whether you dream of filling fluffy steamed buns, delicate mochi, or golden-brown dorayaki, this recipe is your perfect starting point. We’ll explore how to make both the rustic, chunky style (Tsubuan) and the silky-smooth version (Koshian).
What is Red Bean Paste (Anko)?
Anko is a sweet paste made from adzuki beans, sugar, and water. It’s a cornerstone of Japanese, Chinese, and Korean confectionery. The beans are boiled until tender, then mashed and sweetened to create a rich, earthy, and satisfying filling. Its versatility makes it a beloved ingredient across countless dishes.
Tsubuan vs. Koshian: Which Should You Make?
Before we begin, let’s talk texture. Your journey to the perfect red bean paste recipe starts with a choice.
- Tsubuan (Chunky): This style is rustic and hearty. The beans are partially mashed, leaving some whole beans and textured skins for a satisfying bite. It’s quicker to make and offers a more robust, bean-forward flavor.
- Koshian (Smooth): This version is pure elegance. The cooked beans are pressed through a sieve to remove the skins, resulting in a velvety, smooth, and refined paste. It requires an extra step but is worth the effort for delicate pastries.
This guide will walk you through the base recipe first, then show you the extra step needed to achieve that perfect Koshian texture.
Ingredients You’ll Need
The beauty of this recipe lies in its simplicity. You only need a few key ingredients.

- Adzuki Beans: These small, reddish-brown beans are essential. Do not substitute with kidney beans or other varieties, as the flavor and texture will be completely different.
- Granulated Sugar: This provides the classic sweetness. You can adjust the amount to your preference. Some recipes use brown sugar for a deeper, more molasses-like flavor.
- Water: For soaking and boiling the beans.
- Salt: A tiny pinch is all you need to balance the sweetness and enhance the overall flavor.
How to Make This Red Bean Paste Recipe
Let’s get started. Follow these steps for a delicious, all-purpose red bean paste.
Step 1: Wash and Soak the Adzuki Beans
First, rinse your adzuki beans under cold water. Pick out any stones or debris. Place the rinsed beans in a large bowl and cover them with at least three times their volume of cold water. Let them soak for a minimum of 8 hours, or overnight. The beans will swell to about double their size.
Step 2: Cook the Beans
Drain the soaked beans and transfer them to a large pot. Cover with fresh water, bring to a boil, then reduce the heat to a simmer. Cook for 60-90 minutes, or until the beans are very tender and can be easily crushed between your fingers. You may need to add more hot water during cooking to keep the beans submerged.
Step 3: Sweeten and Thicken the Paste
Drain any excess water from the cooked beans. If you are making chunky Tsubuan, you can start mashing the beans directly in the pot with a potato masher or the back of a spoon. Once partially mashed, add the sugar and salt. Return the pot to low-medium heat and stir continuously. The sugar will draw out moisture, making the paste look liquidy at first. Continue to cook and stir for 10-15 minutes as it thickens to your desired consistency. It will thicken more as it cools.
For some baking projects, you might want to try one of our other delicious fillings, like the one in these pineapple sweet breads.
For Perfectly Smooth (Koshian) Red Bean Paste
If you desire a silky-smooth paste, there’s one crucial step to add after boiling the beans. After draining the tender beans, transfer them to a fine-mesh sieve placed over a bowl. Use a spatula or spoon to press the beans through the sieve. This separates the soft inner flesh from the skins. Discard the skins. This process takes patience but is the key to luxurious Koshian. Once you have your smooth puree, transfer it to a pot, add the sugar and salt, and cook over low-medium heat, stirring constantly until it thickens.

This smooth paste is perfect for elegant desserts, much like the creamy filling in our popular Pastel de Nata recipe.
Tips for the Best Homemade Anko
- Don’t Skip the Soak: Soaking is crucial for ensuring the beans cook evenly and quickly.
- Control the Sweetness: Start with a little less sugar, taste, and add more if needed. It’s easier to add than to take away!
- Watch the Heat: When thickening the paste with sugar, use low heat and stir constantly to prevent it from scorching at the bottom.
- Cool Completely: The paste will firm up significantly as it cools. Don’t over-thicken it in the pot, or it may become too hard to use.
How to Use Red Bean Paste
The possibilities are endless! Red bean paste is a wonderful filling for so many treats.
- Steamed Buns (Dou Sha Bao)
- Mochi and Daifuku
- Dorayaki (Japanese Pancakes)
- Mooncakes
- As a topping for ice cream or shaved ice
It’s also a fantastic filling for baked goods. Why not try swapping out the filling in our Banana Bread Brownies for a unique flavor combination?
Storage Instructions
Store your homemade red bean paste in an airtight container in the refrigerator for up to one week. For longer storage, you can freeze it for up to 3 months. Portion it into smaller amounts before freezing for easier use.
Frequently Asked Questions
While you can use canned beans to save time, we highly recommend starting with dried adzuki beans for the best flavor and texture. If using canned, be sure to rinse them thoroughly and look for unsweetened varieties.
You can store homemade red bean paste in an airtight container in the refrigerator for up to one week. For longer storage, it freezes exceptionally well for up to 3 months.
That’s an easy fix! Simply return the paste to the pot over low heat, add more sugar a tablespoon at a time, and stir until it dissolves and is fully incorporated. Taste and adjust until it reaches your desired sweetness.
The possibilities are nearly endless! Use it as a filling for mochi, steamed buns (bao), dorayaki, mooncakes, or simply as a delicious topping for ice cream, toast, or shaved ice.
Tsubuan is a chunky-style red bean paste where the beans are partially mashed, leaving some skin and texture. Koshian is a smooth-style paste where the beans are sieved to remove the skins, resulting in a velvety, refined texture.
Share Your Creation!
We hope you love this Red Bean Paste Recipe! There’s nothing more rewarding than creating this delicious staple from scratch. If you make it, please leave a comment below and let us know what amazing desserts you create. Don’t forget to share your masterpiece on Pinterest!

Red Bean Paste Recipe

Red Bean Paste Recipe (Anko)
Ingredients
Equipment
Method
- Rinse the adzuki beans under cold water. Place them in a large bowl and cover with plenty of cold water. Soak for at least 8 hours or overnight.
- Drain the soaked beans and transfer to a large pot. Cover with fresh water. Bring to a boil, then reduce heat to a simmer and cook for 60-90 minutes, or until beans are very soft and crush easily.
- Drain any remaining water. For chunky paste (Tsubuan), mash the beans in the pot. For smooth paste (Koshian), press the beans through a fine-mesh sieve to remove the skins.
- Return the bean paste (chunky or smooth) to the pot. Add the sugar and salt. Cook over low-medium heat, stirring constantly for 10-15 minutes until the paste thickens. It will firm up more as it cools.
- Remove from heat and let it cool completely. Store in an airtight container in the refrigerator for up to a week or freeze for up to 3 months.
Notes
Ensure you stir constantly when thickening the paste to prevent it from burning.