The ume plum in the tangy-sweet compote is delicious as its own, but even better with plum wine, plum juice, yogurt, ice cream, and shaved ice!
Gather all the ingredients. Measure your used ume plums. You will need an equal amount of sugar and water. If you're storing the compote, wash the jar, lid, and band in hot, soapy water. For 455 g of used ume plums (from making ume syrup with 1 kg ume lums), you would need one 1-QT mason jar.
In a large pot, combine the ume plums and water. Cover and bring it to a boil on medium heat.
Once boiling, reduce the heat to low/simmer and cook covered for 20-30 minutes (depending on size) until plums are tender. They will start to become plumped and less wrinkly, and then add sugar.
Gently mix with chopsticks or shake the pot so that sugar is evenly distributed.
Cover with a lid and simmer for 5 minutes or until the sugar is completely dissolved.
About 10-15 minutes before the compote is done, sterilize the jar: Put the jar on a rack in a pot of water. Boil for at least 10 minutes and keep in simmering water until ready to fill. Carefully remove the jars from the water with a jar lifter or tongs, empty out the water and place the jar on a clean kitchen towel. Put the lid and band in a small saucepan of simmering water (do not boil) until ready to use.
Fill the jar with the plums and syrup, leaving ½ inch from the top.
Remove the lid and band from the simmering water with tongs and place them on top of the jar. Close the lid tightly and turn the jar upside down to seal. Let cool. Check the seal: The lid should not pop in the center (if they do, you can only keep the compote in the fridge for up to 1-2 weeks). Store unopened vacuum-sealed jar in a cool, dark place for 2-4 weeks. Refrigerate after opening. Enjoy the compotes and syrup (read my suggestions in the blog post).
Recipe by Namiko Chen of Just One Cookbook. All images and content on this site are copyright protected. Please do not use my images without my permission. If you’d like to share this recipe on your site, please re-write the recipe and link to this post as the original source. Thank you.
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