how to make kuromitsu (黒蜜 black sugar syrup)

Kinako Ice Cream with Kuromitsu

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Kuromitsu is a Japanese simple syrup made from black sugar harvested in Okinawa. It’s got an extremely sweet and complex flavor that’ll add both character and sweetness to any dish you desire.


⦁ 100 grams Black sugar kurosatou 黒砂糖, Okinawan black sugar
⦁ 1/4 cup water
⦁ 1 tablespoon boiling water


  1. In a microwave safe bowl, mix the sugar and water together and try to break down the clumps as small as possible.
  2. Microwave the bowl for about 2-3 minutes to melt the sugar.
  3. If not completely melted, mix and microwave more in 15 second increments until most of the sugar is melted.
  4. Add the remaining tablespoon of hot water to help dissolve any remaining pieces.
  5. Set aside and allow to cool.


Kuromitsu should be stored in the refrigerator and used within 5-7 days. As there are no preservatives, it can easily spoil if unused and or left out at room temp.

Keywords: kuromitsu, black sugar, simple syrup, japanese

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