When I think about summer desserts, this homemade chilled Fruit Jelly is always the first thing that pops into my mind. It’s colorful, refreshing, and light—perfect for making use of seasonal fruits!

What are your favorite sweets to enjoy and cool down with on hot summer days? One of my favorites is this translucent fruit jelly. The see-through jelly reminds me of ice cubes and instantly makes me feel cool as I imagine the chilled jelly with refreshing fruits in my mouth.
I made this jelly in my upstairs office when we had our kitchen remodeled, as it requires only a portable stove, a small saucepan, a cutting board, a knife, and a mold. So, if you live in a tiny apartment or a dorm with limited kitchen space, you can make this dessert too! Let me show you how.
Table of contents
Why You’ll Love This Recipe
- Super easy to make, portable, and attractive! That means it makes an ideal dessert to serve at a part or for a potluck. Kids and adults love it.
- A healthy, guilt-free dessert that is also dairy- and gluten-free. There’s no artificial flavors, colors, or additives either.

Ingredients for Fruit Jelly
You need just a few ingredients to make fruit jelly!
- Water
- Kantan powder — This is a vegan-friendly gelatinous substance we use for making jelly. You can sub it with agar-agar or gelatin, but kantan is the best. More details below.
- Sugar
- Fruits of your choice — Oranges, strawberries, blueberries, and kiwi work well
How to Make Fruit Jelly
- In a small saucepan, add water and kanten (agar) powder. Whisk to combine and bring to a boil.
- Once boiling, lower the heat and cook for 2 minutes, whisking occasionally to dissolve the kanten powder. After 2 minutes, remove from heat.
- Add sugar and whisk until completely dissolved.
- Pour the liquid into the mold (or nagashikan). Let it cool in the refrigerator or at room temperature.
- Cut the fruits. When the bottom layer is slightly set, place the fruits on top. Then, pour the rest of the mixture into the mold. Keep in the fridge until the jelly has set completely. It’s now ready to be cut and served!
Quick Note on Kanten

Kanten (寒天)—commonly used in Japanese desserts—is a white and semi-translucent gelatinous substance obtained from algae. Just like gelatin, it solidifies liquid and is the key ingredient we use for making jelly.
The benefit of using kanten is that it’s vegetarian- and vegan-friendly, making it a great alternative to animal- or chemical-based gelatin. There are three types of kanten (powder, stick, and thread), and you can use any one of them. I used kanten powder for this recipe.
For conversion from 2 tsp (4 g) kanten powder, you will need:
- Kanten stick = 1 stick (8 g)
- Kanten thread = 24 threads (8 g)
You can find it in Japanese and most Asian grocery stores, or online at Mitsuwa or Marukai (for US residents). If you can’t find kanten in your area, you can substitute it with agar-agar or gelatin.
If you want to use agar or gelatin instead, you will need 4 teaspoons of agar or powdered gelatin (8 g). Please remember the jelly made with gelatin will quickly melt in the summertime, while kanten will not melt at room temperature (read more here).
Useful Equipment for Making Jelly
Nagashikan – A Mold with a Removable Inner Tray

To make this fruit jelly recipe, you can use a mold or a baking pan with a higher rim and place plastic wrap on the bottom to un-mold easily.
Since I regularly make jelly in the summer, I bought a traditional Japanese stainless steel mold with a removable inner tray called nagashikan (流し缶). This removable inner tray makes it easy to un-mold the food if it easily sticks to the container. The mold is available for purchase on Amazon (this is the bigger size) or Rakuten.
We also use it to make Tamago Tofu (玉子豆腐) and traditional cold treats like Yokan (羊羹, azuki bean jelly).
Another option is to cut all the fruits into small cubes and serve this dessert in individual glass cups. I usually make my fruit jelly that way, and it looks pretty in a glass container.
If you serve this jelly in individual cups, reduce the kanten powder to 2 grams. That way, the jelly is softer and jiggly. Today’s recipe requires us to cut around the fruits, so the jelly is designed to set firmer and won’t jiggle as much.

Helpful Tips
- Texture of the jelly
If you prefer a softer jelly texture that is not as firm, like my fruit jelly today, you can reduce the amount of kanten powder to 2 grams (half the package).
If you do so, I highly recommend chopping the fruits into smaller cubes, making the jelly in individual cups or a large baking pan, and serving with a spoon.
Less kanten powder will result in a jelly that jiggles (プルプルって感じ) and goes down your throat smoothly. If you prefer to make this “ice cube” style, keep the ratio as it is.
2. Choice of fruits
Besides the fruits I used for this recipe, you can use cherries, raspberries, apples, grapes, mango, and peaches. Canned mandarin oranges and peaches or pineapple are excellent choices, as the syrup adds sweetness. I recommend an assortment of colorful fruits that will look pretty suspended in the jelly.
3. Amount of sugar
This recipe uses 4 tablespoons (1/4 cup) of sugar. To call this dish a ‘dessert,’ this amount is necessary.
If you want to omit the sugar or use less, the fruits you use must be super sweet or canned in syrup. Use 4 tablespoons for a healthier jelly, and 6-8 tablespoons for a ‘dessert’ fruit jelly. Please adjust the sugar amount to your liking.

More Summer Desserts You’ll Enjoy
- Japanese Strawberry Milk
- Plum Cake (Blueberry and Peach, Too)
- Best Cherry Bars with Brown Butter
- Mango Lassi Popsicles
- Chocolate Gateau (Chocolate Cake)
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Fruit Jelly
Ingredients
- 2 cups water
- 4 g kanten (agar) powder (1 package, 2 tsp)
- ¼ cup sugar (4 Tbsp for “healthy“ and 6–8 Tbsp for “dessert;“ please read the post)
- fruits of your choice (oranges, strawberries, blueberries, and kiwi work well)
Instructions
- Before You Start…Please note that this recipe requires 6 hours of chilling time.Gather all the ingredients. You will need a nagashikan (6 x 5.1 x 1.8 inches, 15 x 13 x 4.5 cm) or a similar-sized container lined with plastic wrap.
- In a small saucepan, add 2 cups water and 4 g kanten (agar) powder. Whisk to combine and bring it to a boil.
- Once boiling, lower the heat and cook for 2 minutes. Whisk occasionally and make sure the kanten powder has completely dissolved. After 2 minutes, remove from the heat.
- Add ¼ cup sugar and whisk until sugar is completely dissolved.
- Run water in the mold (or nagashikan) and pour the liquid until there is about ⅓ inch (8 mm) in the mold (so that the fruit won‘t touch the bottom). Using a spoon or toothpick, move the bubbles on the liquid to the corner and remove them. Let cool in the refrigerator for just under 10 minutes or at room temperature for a little longer time.
- Meanwhile, cut the fruits of your choice for the jelly.
- The thickness of the fruit should be about the same.
- When the bottom layer is slightly set (neither liquid nor completely set), place the fruits on top. If the bottom layer set too firm, the top layer will not attach to the bottom layer well and the fruit jelly will separate into the top and bottom layers when you cut. The liquid in the saucepan should not be solidified since the saucepan is still warm and it has more liquid in there. If solidified, then reheat until it turns to liquid.
- Then, pour the rest of the mixture in the mold. Pop and remove the bubbles. Keep in the fridge until the jelly has set completely.
To Serve
- Run a knife around the mold and gently flip and unmold the jelly. If you’re using the nagashikan, run a knife around the mold and pull up the handles.
- Cut the jelly around the fruit so they look prettier. Serve chilled on a plate.
To Store
- You can keep the jelly in an airtight container and store in the refrigerator for up to 2 days.
Hi,
Thank you for sharing!
This looks so good and easy, just wondering, does agar needs refrigeration once is set?
Hi Raf,
We recommend refrigeration. This Agar fruit jelly is best to serve in cold.
I hope this is helpful.🙂
Can this recipe be canned in a mason jar? If so, what is the recipe for that?
Hi Miki! Are you going to use a 4 oz (or smaller) jar for an individual serving? Then sure, you can do that. Instead of cutting into pieces, you can scoop and eat. You have to divide the mixture tho. I’ve never tried it, so you may test and see how many you need and how much mixture each jar requires.
I’m using 6 oz jars and hoping that the canning process will make the ゼリー shelf safe (not require refrigeration). Do you think that would be possible?
Hi Miki! Hmm what kind of canning process will you be doing to “preserve” at room temperature? I’m not sure if you can do that for fresh fruits…
Would you recommend doubling the recipe to make it in an 8×8 pan?
Hi Akiko! Yes, so that the fruit is covered properly and solidify. 🙂
My daughter & I made this refreshing dessert with golden kiwi & strawberries. It was easy & made a nice treat for our Japanese grandma. Lightly sweet. Thanks for all the easy to understand directions. We used an 8×8 dish lined with plastic wrap, then cut off the sloped edges to make nice square pieces.
Hi Lesley! Thank you so much for trying this recipe and I’m so happy to hear your Japanese grandma enjoyed it. Thank you for your detailed and kind feedback. xo
I just made this! The only problem I had is my fruit floated to the top. Any idea what I did wrong? I ended up putting a lot of fruit in and mashing it down as the liquid started to solidify.
Hi Cheryl! Thank you so much for trying this recipe! Hmmm… Let me see… Maybe you added the fruits too late? When the bottom layer is almost set you put the fruits so it kinds of stay in and then pour the kanten mixture to fill up space… Maybe you took too long to finish adding the mixture if the liquid started to solidify.
This is very amazing and beautiful. I was just wondering, could you use the Knox unflavored gelatin instead of using agar? I’m not sure if the Knox would set as firm as the agar. In that case how much would I have to increase the amt of Knox for it to set as firm as agar?
Hi Belinda! I’m so sorry for my late response. I had been sick for 2+ weeks and am finally getting better!
Agar (or Kanten) is firmer than gelatin. Gelatin would giggle but Kanten is much firmer and won’t giggle. So I’m not sure how it would turn out to put the fruit in the same way… I think you can, but it won’t have a sharp corner like how it looks here. But like you suggested, maybe adding more gelatine may help???? I never tried and not 100% sure. Sorry, I wish I know!
Hi Nami — what a delicious and refreshing looking recipes — such stunning and gorgeous photos.
I have a question about agar. I did read your Agar and Kanten information page but there wasn’t a place to leave a comment. I took a field trip to an Asian grocery store and bought agar powder, it’s Telephone Brand from Thailand, and it’s packaged in a similar square packet/package size like yeast. Anyway, I’m rambling. I won’t be using up the agar powder all at once so can you please tell me how long the agar agar will last once opened? (Assuming that after I open the package I will carefully and gently seal the packet with some tape and perhaps place it in a zip top bag and store it in a cabinet.)
Hi Beth! Thank you for your kind words. Does that have expiration date on the package? If not… maybe a year? Usually, dried goods should last at least a year. Maybe a freezer may work too. Let me know how it works with agar powder from Thailand. I’m curious. 🙂
Hi Nami. Thank you so much for your reply. I don’t see an expiration date on the package, although there is a lot code stamped on the front of the packet. It’s 18/690. I wonder if the “18” refers to the year 2018? Don’t know.
As for how it works, it does 🙂 It’s been a long time, but I have used this exact brand of agar agar powder before to make a specific recipe for vegan cheese. I bought some recently so I can make the recipe again. I don’t want the packet to just get forgotten and buried in a cabinet so I’m looking for some creative ways to use up the rest of the packet.
Just curious, have you heard of the Telephone Brand? You can google ‘telephone brand agar agar’ and see what the package looks like — it’s pretty cool but then again food packages from other countries always are 🙂
Hi Beth! Hmm yeah that number doesn’t seem like the exp date. Thanks for letting me know about the agar powder! No, I’ve never used or heard of the Telephone Brand. So interesting old fashion telephone is on the package!
where can I buy NAGASHIKAN.
yuriko
Hi Yuriko! Here’s the website I got mine: https://toirokitchen.com/products/rectangular-mold-for-steaming
Hi! thank you for this recipe! I was thinking about making these for Christmas but I would only be able to afford one of the nagashikan’s so I’d have to just do them in batches for nine for several people…and so I assume it will be a several day process. I was wondering how long these are usually good for. Or if there is a way to store them for them to last longer?
Hi Bethany! Hmm! Good question! Considering fresh fruits in the jelly… I think sooner is better… I’d say up to 5 days? I had never kept it for a long time so it’s hard to say. 🙁
I understand. will keep that in mind thank you so much ^_^
Good luck! xo
oh cool! Can you make these in an ice cube tray, or something like that in a design? Do they really taste good?
Hi Jessica! If it’s easy to unmold, sure. I guess it depends on the tray? Maybe silicone mold may be much easier to unmold.
The taste is rather simple. It’s traditional Japanese sweets, so it’s not very sweet. We sweeten this dessert but for some people you may want to increase the sweetness.
I love your recipe so very much !! Your description is very clear and thoughtful!! Easy to understand too! I love the Nagashikan….this is something I am looking around…thank you for the recommendation! I am going to make it for the Christmas party and my girl’s birthday party!
Keep it up!!
Hi Crystal! Thank you for your kind words! Nagashikan is very useful and I love the simple yet smart design. Hope you enjoy making the dessert for the special occasions!
Hi Nami,
What size is the pan? Yours looks smaller than my pan which is 9.5×9.5
Hi Cindy! I have the link for my mold in recipe Notes. My nagashikan is 6 x 5 x 2 inch or 15 x 13.5 x 4.5 cm. 🙂
I used 2 tsp of Kanten powder for 2 cups of water, but it didnt solidify well and it looked more like ‘jiggling jelly’ instead of firm jelly cubes. Should I add more Kanten powder? Or was it the fruits (strawberries and canned peaches) I used the problem?
Hi Emma! Hmm… my result came pretty solid and it wasn’t jiggly. I am not sure if each brand of kanten gives different result (I hope not)… I think more kanten powder will help for sure. Also, make sure that kanten powder is completely dissolved with water. I’ve read some articles that it may result in not solidifying. Strawberries and canned peaches should not have any issue. 🙂
Gd morning
I read this receipe with interest. I have a query, may I know where to get the kanten powder? I was looking for it in Singapore but can’t find in supermarkets.
Regards
Evelyn
Hi Evelyn! Kanten and agar powder are very similar. According to what I read, it’s not exactly same but it’s closest. I know a lot of my Singaporean readers use agar for the desserts on my blog, so I think that’ll work too. 🙂 Or Japanese department store should carry it at the food / supermarket floor. 🙂
Hi Nami,
I’m planning to make these over the weekend and I was wondering if I could use a sugar alternative like stevia instead of the sugar?
Hi Min! Unfortunately I haven’t tried the recipe with sugar alternative before, but I’m pretty sure it’ll work. Let me know if you have any issue with the sugar alternative (maybe other JOC readers may want to know too.). Hope you enjoy the recipe! 🙂