Homemade Fruit Gelatin (With Fresh Fruit or Juice)

Skip the artificial colors and flavors of packaged gelatin mixes! Making homemade fruit gelatin is surprisingly easy, and you can use fresh fruit or fruit juice to create all sorts of delicious flavors.

Here in Spain, packaged gelatin mixes aren’t as popular as Jell-O is in the United States. We don’t have the same variety of flavors and colors to choose from.

You can find ready-made gelatin desserts in the refrigerated section of the supermarket, though. After watching my son try a bright red one at his grandmother’s house, I decided to experiment with making a more natural version at home.

He’d discovered a new dessert and loved its unusual, jiggly texture. I just wasn’t particularly excited about all those artificial colors!

Why make your own fruit gelatin?

One of the best things about making your own gelatin is that you get to choose exactly what goes into it!

You can use naturally sweet fruit without adding any extra sugar. Or, if you want something a little sweeter, you can add honey, maple syrup, or your favorite sweetener.

Plus, you’re not limited to the flavors available in packaged mixes. You can experiment with all sorts of different fruits!

Ingredients

Making homemade fruit gelatin is surprisingly easy. You really only need two ingredients: fruit and gelatin!

You can use fresh fruit to make a purée or use fruit juice instead. Both work well!

For the gelatin, I normally use unflavored powdered gelatin, but you can also use gelatin sheets. If you’re using sheets, follow the manufacturer’s instructions for the amount of liquid in this recipe, since the amount needed can vary between brands.

Make sure you’re using gelatin that actually sets liquids, rather than hydrolyzed collagen (collagen peptides), which won’t work for this recipe.

Many fruits are sweet enough that you won’t need to add anything else. If you’re using something a little more tart, you can add sugar, honey, maple syrup, or your preferred sweetener.

One of my favorite things about this recipe is experimenting with different fruits. So far, watermelon and pineapple are two of my favorites!

I normally use fresh watermelon, but for pineapple gelatin, I prefer using store-bought pineapple juice. I’ll explain why below.

When making watermelon gelatin, I usually use about a quarter of a small watermelon for each tablespoon of powdered gelatin. That usually gives me around 2 cups of watermelon juice.

Vegan alternative to gelatin

If you want to make a vegan version, you can use agar-agar instead of gelatin. Agar is made from red algae and works well for making fruit-based desserts.

The texture is a little different, though. Agar sets more firmly and doesn’t have quite the same jiggly texture as traditional gelatin.

The amount you’ll need depends on the type of agar you’re using and the texture you want. Follow the instructions on the package, keeping in mind that agar powder and flakes aren’t interchangeable.

Unlike gelatin, agar needs to be boiled to work properly. Mix it with your juice, bring it to a boil, and stir for the time indicated on the package.

Then pour the mixture into your serving containers and let it cool. Agar sets at room temperature, but you can refrigerate it if you prefer your gelatin cold.

Fresh fruit vs. fruit juice

Although I generally prefer using fresh fruit, sometimes store-bought juice is actually the better choice for making gelatin.

Certain fruits contain enzymes called proteases that break down proteins. When you use these fruits fresh, those enzymes break down the gelatin and keep it from setting. I learned this the hard way years ago when I tried making gelatin with fresh pineapple!

Interestingly, some of these fruits are also used as natural meat tenderizers for the very same reason. And if you’ve ever eaten a lot of fresh pineapple, you may have noticed that your mouth starts to feel a little raw. That’s partly because those same enzymes are breaking down proteins in your mouth!

Luckily, you don’t have to avoid these fruits altogether. You just need to prepare them differently.

Which fruits can prevent gelatin from setting?

Fresh pineapple, kiwi, papaya, figs, and guava all contain enzymes that can keep gelatin from setting properly. Fresh ginger can also cause problems, and mango may interfere with setting in some cases.

The good news is that heating these fruits destroys the enzymes that cause the problem. So, if you want to use fresh pineapple or one of the other fruits on this list, you can cook the fruit or juice first.

Freezing doesn’t have the same effect, though, so using previously frozen fruit won’t necessarily solve the problem.

Why does store-bought pineapple juice work?

Most store-bought pineapple juices are pasteurized, meaning they’ve been heated during processing. This deactivates the enzymes that would otherwise keep your gelatin from setting.

That’s why I usually use store-bought pineapple juice when making pineapple gelatin. It’s easier, and I don’t have to worry about cooking the pineapple myself! Just make sure you’re using pasteurized juice. Fresh, unpasteurized pineapple juice can still cause problems.

I also prefer choosing juice without added sugar so I can adjust the sweetness myself.

How to make gelatin with fresh fruit

(1) Start by preparing your fruit juice or purée. Peel the fruit and remove any large seeds, if needed. You can use a juicer or blend the fruit until smooth.

I usually strain out the pulp and small seeds from fruits like strawberries and raspberries for a smoother texture, but you can leave them in if you prefer.

Depending on the fruit you’re using, you may need to add a little water, coconut water, or juice to thin out the purée. I don’t add anything to watermelon because it’s already so watery, but thicker fruits may need a little extra liquid. You’ll want a total of 2 cups of juice or purée, including anything you’ve added.

(2–3) Sprinkle the powdered gelatin over a small portion of the cold juice or purée and let it sit for about 5 minutes, until the gelatin has absorbed the liquid. Make sure there’s enough liquid to hydrate all of the gelatin. If your purée is too thick, you can use cold water instead. Just remember to include that water in your 2-cup total.

(4) Heat about half of the remaining juice or purée in a saucepan over low to medium heat. It doesn’t need to boil, just get hot enough to dissolve the gelatin. Add the hydrated gelatin and stir until completely dissolved. If you’re adding sugar, this is a good time to dissolve it, too.

(5) Remove the saucepan from the heat and stir in the remaining cold juice or purée. Taste the mixture and adjust the sweetness if needed.

Remember: If you’re using fresh pineapple or another fruit with enzymes that prevent gelatin from setting, you’ll need to cook all of the juice or purée first. Don’t add any raw fruit back into the mixture afterward.

(6) Pour the mixture into individual glasses or bowls and refrigerate until set.

How to make gelatin with fruit juice

Making gelatin with fruit juice is even easier because you can skip preparing the fruit.

Start by measuring out 2 cups of juice. Set aside a small portion while it’s still cold, and sprinkle the powdered gelatin over it. Make sure there’s enough juice to hydrate all of the gelatin, and let it sit for about 5 minutes, until the gelatin has absorbed the liquid.

Heat about half of the remaining juice in a saucepan over low to medium heat. Add the hydrated gelatin and stir until completely dissolved. There’s no need to bring it to a boil. If you’re adding sugar, stir it in while the juice is warm so it dissolves easily.

Remove the saucepan from the heat and stir in the remaining cold juice. Taste the mixture and adjust the sweetness if needed.

Pour the gelatin into individual glasses or bowls and refrigerate until set.

Adjusting the recipe

Besides adjusting the sweetness, you can also change the texture of your homemade gelatin.

I usually use 1 tablespoon of powdered gelatin for every 2 cups of juice or purée. This gives me a softer gelatin that’s easy to eat with a spoon, although the results can vary depending on the gelatin and fruit you’re using.

If you prefer a firmer gelatin that you can cut into squares, just add a little more gelatin. And if you want something chewier, try my homemade fruit gummies!

If your fruit mixture tastes too sweet or you’d like to give it a little more tartness, try adding a splash of lemon or lime juice.

Gelatin popsicles

Another fun way to use homemade fruit gelatin is to freeze the mixture in popsicle molds!

They’re especially nice in the summer, and the texture is a little different from popsicles made with just fruit juice.

The gelatin also helps keep them from dripping as much when they start to melt, which is especially handy when making them for kids.

If you want to give them a try, check out my recipe for watermelon gelatin popsicles.

Frequently asked questions

Video

This post was originally published on September 1, 2016. It was rewritten with new photos and a video in July 2021, and updated again in October 2026.