Ume Plum Syrup 梅シロップ

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  • Fruity, tart, sweet, and aromatic, this Ume Plum Syrup made from unripe green plums and rock sugar makes a wonderful drink in summer months. You can also use this syrup to make shaved ice and more!

    A mason jar containing ume plum syrup.

    Before I was old enough to drink Japanese Plum Wine (Umeshu), I enjoyed the kid-friendly ‘Ume Juice’ (梅ジュース) made of Ume Syrup (梅シロップ) and carbonated water. It is so delicious, and even until now, I feel nostalgic about its tart and sweet taste.

    Ever since I found that I can purchase ume plums here in the US (read below), I’ve been making Umeshu for adults and Ume Syrup for my children and my own enjoyment. Now that the warm weather is here, I’m so excited to share the syrup recipe on the blog!

    Why You’ll Love This:

    • Fruity, sweet, tart, and delightful aroma.
    • Absolutely delicious! I overuse this word, but it’s really that good.
    • When mixed with icy cold water, you get the most thirst-quenching and crave-worthy summer drink
    • Bright and refreshing flavoring in a variety of summer drinks, desserts, and more.
    • Make a special edible gift because of the short season and limited access of ume.

    Tall glasses containing ume syrup cider and ume compote.

    2 Ingredients You’ll Need:

    Ume Syrup Ingredients

    This recipe is super easy to make. You’ll need only two ingredients:

    1. Ume plums (green, unripe ones)
    2. White rock sugar

    You will also need a large glass container to store plums and sugar. The Japanese and Korean grocery stores sell these giant 4-litter jars during the ume plum seasons. Unfortunately, I haven’t seen them sold online but I’ll update you if I find any.

    Where to Get Ume Plums

    You have to use tart, sour, and firm green ume plums to make the syrup and not any other types of plums you see in the store. Both Japanese and Korean grocery stores sell ume plums around early to mid-May.

    These raw green plums are not edible as they are too tart and bitter (also if you eat too many of them, it is said you’ll likely have a stomachache). We only use the extract of the fruits by fermenting with lots of sugar or salt.

    If you live in the United States, you can contact my friend John to reserve your ume plums for $8 per pound. They can be picked up in San Rafael (SF Bay Area) or shipped to your home.

    Green Ume Plums

    How to Make Ume Plum Syrup

    It’s really easy and simple, but I have to warn you that it takes 10 to 14 days to finish making the syrup. Mostly inactive time, except for the first and last day.

    It involves 3 steps:

    1. Wash ume plums and remove stem ends from the plums.
    2. Put the plums and sugar in the jar and simply wait for 10-14 days.
    3. Cook the syrup to kill any germs and store in a sterilized jar.

    Easy, right? Now take a look at how the ume plums transform from Day 1 to Day 14.

    A glass container containing ume plum and rock candy.
    Day 1: Rock sugar hasn’t melted yet.
    A glass container containing ume plum syrup.
    Day 9: Syrup started to cover the plums.
    A glass container containing ume plum syrup.
    Day 14: Rock sugar is almost melted. It could be completely melted in a few more days.

    How to Use Ume Plum Syrup

    Besides the most refreshing drink, you can do a lot with ume plum syrup.

    Here’s what I suggest:

    • Ume Juice or Ume Cider – You can dilute the syrup with icy cold water or carbonated water.
    • Ume Shaved Ice – Drizzle the syrup over the shaved ice and enjoy it with Ume Compote.
    • Baked Goods
    • Jelly or Kanten desserts
    • Salad Dressing

    You can use it just like what you would with lemon simple syrup. Stir it over greek yogurt, lavish over vanilla ice cream, or incorporate into tea.

    For those who are into cocktails or mocktails, I think a touch of the plum syrup can do wonder in the drinks. I like the sound of ume flavored Japanese gin or maybe ume-spiked sake!

    Itadakimasu!

    Ume plum season in California is from mid-May to early June. If you’re lucky enough to score a batch, making the ume plum syrup is a classic and joyful Japanese rite to celebrate the season. Once you try it, you will want to make it your annual activity. It’s the Japanese version of lemonade syrup. I hope you enjoy!

    Tall glasses containing ume syrup cider and ume compote.

    Japanese Ingredient Substitution: If you want to look for substitutes for Japanese condiments and ingredients, click here.

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    5 from 3 votes
    Tall glasses containing ume syrup cider and ume compote.
    Ume Plum Syrup
    Prep Time
    30 mins
    Cook Time
    15 mins
    Sitting Time
    14 d
    Total Time
    14 d 45 mins
     

    Fruity, tart, sweet, and aromatic, this Ume Plum Syrup made from unripe green plums and rock sugar makes a wonderful drink in summer months!

    Course: Condiments
    Cuisine: Japanese
    Keyword: ume plum
    Servings: 1 L
    Author: Nami
    Ingredients
    Instructions
    1. Gather all the ingredients. You will also need a 3 litter or 4 litter glass jar, which you can buy at a Japanese or Korean grocery store.

      Ume Syrup Ingredients
    2. Rinse the jar thoroughly with soap and hot water and wipe with a clean towel. While the jar is still hot, pour boiling water and shake to clean and drain. Air dry completely, making sure there's no moisture. Damp the clean towel with liquor (I use shochu) and wipe inside the jar.

      Ume Syrup 3
    3. Wash and dry the green plums thoroughly.

      Ume Syrup 1
    4. Remove stem ends from the plums with a bamboo skewer or toothpick. Discard plums with any brown or blemished spots.

      Ume Syrup 2
    5. In the clean jar, put the plums in a single layer. Then cover the plums with rock sugar.

      Ume Syrup 4
    6. Then put the plums in a single layer again, followed by sugar. Repeat this process until you’re done with the plums and sugar. Tip: the last layer of plums should be completely covered with rock sugar.

      Ume Syrup 5
    7. Seal, write the date on the jar and store in a cool, dark place (no refrigerator).

      Ume Syrup 7
    8. From Day 1 to Day 14. Occasionally shake the jar and make sure the plums are coated with the syrup.

      Ume Syrup 8
    9. Sterilize the jars and tools you are going to use to store the syrup. Wash the jars, lids, and bands in hot, soapy water. Put the jars on a rack in a pot of water. Boil at least 10 minutes and keep in simmering water until ready to fill. Carefully remove a jar from the water with a jar lifter or tongs, empty out the water and place the jar on a clean kitchen towel. Put the lids and bands in a small saucepan of simmering water (do not boil) until ready to use.

      Ume Syrup 9
    10. Take out the plums and measure the weight (455 g) if you plan to use them for other recipes. I recommend making Ume Plum Compote.

      Ume Syrup 10
    11. Pour the syrup into a large pot. Simmer for 15-20 minutes on low heat, skimming the foam that comes up to the surface.

      Ume Syrup 11
    12. Fill the jar with the hot syrup, leaving ½ inch. Repeat to fill the remaining jars. Remove the lids and bands from the simmering water with tongs and place them on top of the jars.

      Ume Syrup 12
    13. Close the lid tightly and turn the jar upside down to seal. Let cool. Check the seal: The lids should not pop in the center (if they do, you can only keep the syrup in the fridge for up to 2 weeks).

      Ume Syrup 13
    To Serve and Store
    1. To enjoy the syrup, dilute it with iced water or carbonated water. Store unopened vacuum-sealed jar in a cool, dark place for 6 months. Refrigerate after opening and use it in 2 weeks.

      Tall glasses containing ume syrup cider and ume compote.
    Recipe Notes

    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 in your own words and link to this post as the original source. Thank you.

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