Botamochi

Rinse 200g of Azuki beans thoroughly under cold water.

Place the rinsed Azuki beans in a large pot with ample water, bring to a boil, then drain immediately. This initial boil helps remove astringency.

Return the Azuki beans to the pot, add 1000g of fresh water, bring to a boil, then reduce heat to low, cover, and simmer for 1.5 to 2 hours, or until the Azuki beans are very soft and easily crushed.