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Kuromame (black soy beans)

Kuromame (黒豆) is a Japanese black soy bean dish that's simmered in a sweet and savory sauce, typically eaten as part of New Year's Osechi.
Course Sides
Cuisine Japanese
Level Intermediate
Main Ingredient Legume
Diet Dairy-Free, Low-Fat, Pescatarian, Vegan, Vegetarian


  • 200 grams dried black soy beans
  • 1.5 tablespoons soy sauce
  • 1/2 cups brown sugar
  • 2/3 cups sugar
  • 6 cups water


  1. Rinse the beans under cold water, then add all the ingredients to a clean cast iron pot. Bring to a boil, then transfer to a bowl, cover and let it sit overnight.
  2. Put the beans back in the cast iron pot. Cover with a round piece of parchment paper to ensure the beans are submerged, then simmer for 4-5 hours or until the beans are tender. If the amount of liquid starts looking low, you may need to add some water.
  3. Strain the beans out and boil the syrup until thick, glossy and very black. Pour the liquid over the beans and refrigerate overnight.