Sweet Red Bean Paste
Sweet red bean paste is made by simmering small adzuki beans until they are completely soft, then mashing them with sugar and a small amount of fat until the mixture holds its shape. The goal is to reach a texture that is spreadable or moldable without being watery, usually achieved by cooking off excess moisture in a heavy-bottomed pan.
Patience is your primary ingredient.
The beans need a long soak to soften evenly, and the reduction process requires attention to keep the sugar from catching on the bottom of the pan.
- Heavy-bottomed saucepan
- Potato masher or spatula
- Fine-mesh sieve (optional, for smooth paste)
What goes in.
- 1 cupdry adzuki beans
- 3/4 cupgranulated sugar
- 2 tbspneutral oil or melted unsalted butter
- 1/4 tspsalt
Evaporating the moisture
Once the beans are mashed and sweetened, move the paste over medium-low heat. Stir constantly until the mass pulls away from the sides of the pan and loses its glossy, wet look.
The method.
Soak the beans
Rinse the beans thoroughly and place them in a bowl with enough cold water to cover by two inches. Let them soak for at least 8 hours or overnight.
Simmer until tender
Drain the beans and put them in a pot with fresh water. Bring to a boil, then reduce to a low simmer. Cook for 60 to 90 minutes until the beans crush easily between your fingers.
Drain and mash
Drain any remaining water. Return beans to the pot and crush them with a potato masher. For a fine paste, push the mash through a fine-mesh sieve into the pot.
Incorporate sugar and fat
Add the sugar, oil, and salt to the bean mixture. Turn the heat to medium-low.
Reduce to consistency
Stir continuously as the sugar melts and the mixture thins out. Keep stirring for 10 to 15 minutes until the moisture evaporates and the paste becomes thick and moldable.
Other turns to take.
Chunky Style
Skip the sieve step and use a potato masher only; this leaves visible bean skins for a rustic, textured finish.
Salted Butter Version
Substitute the neutral oil with salted butter for a richer finish often used in buns and pastries.
When it doesn't go to plan.
If the paste seems too dry, add water one teaspoon at a time while heating to adjust the consistency.
Cool the paste completely before using it as a filling to ensure it stays firm inside pastries.
Taste the paste after adding sugar; some prefer it slightly less sweet, depending on the final application.
The ones that keep coming up.
How do I know when the paste is done?
The paste is ready when you can draw a spatula through the middle and the sides stay put rather than sliding back to fill the gap.
Can I store this for later?
Yes, store it in an airtight container in the refrigerator for up to five days, or freeze it for up to three months.
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