This watermelon granita recipe is the ultimate watermelon summer refresher! Plus, it can be made with as little as ONE ingredient – fresh watermelon. However, I’ve included a whole list of optional add-ins and variations! Best of all, watermelon shaved ice requires just minutes of hands-on prep before freezing, fluffing, and enjoying!

This year I’ve decided to make the most of watermelon season while it’s at its sweetest. I’ve already shared a recipe for a watermelon feta salad, watermelon salsa, and I’ve whipped up a large batch of watermelon juice and even jelly. Now it’s the turn of this simple, refreshing watermelon granita (aka watermelon Italian ice/watermelon shaved ice).

This fluffy, icy watermelon treat is the perfect way to cool down during warm summer days/evenings or end a BBQ/garden party. Plus, with the option of just ONE ingredient, this recipe also makes for a healthy summer snack too!

What is a Granita?

Traditionally granita is a Sicilian semi-frozen dessert. It is made by combining sugar, water, and one of several flavor options (in this case, watermelon).

In fact, depending on where in Italy you try granita, the texture varies massively. From drinking it like a slushie to eating it as a soft sorbet texture or as coarser ice crystals. No matter which way, the process is incredibly simple (especially for a dessert with such a “fancy” name)!

The basic process for making granita relies on combining the ingredients and freezing them in a large dish. The amount of agitation during the freezing process and how the semi-frozen mixture is then scraped/shaved determines the texture.

For this homemade watermelon granita, I’ve made it with a reasonably coarse texture – but that’s all adjustable, too! Plus, since I used just one ingredient, it’s as simple as blending (straining if preferred), adding to a dish, freezing, then scraping!

The Ingredients

• Watermelon: use a fresh, ripe watermelon. Seedless varieties are best in oder to avoid having to sieve the mixture but seeded varieties are fine too! Yellow watermelon will work too.

Optional Add-Ins and recipe variations

• Simple syrup: I don’t add any when the watermelon is at its sweetest but do so if it needs a little help (or if you have a sweet tooth). I recommend ¼ cup simple syrup but increase to taste. Use unrefined sugar (like coconut sugar) to make it if preferred – just be aware that each sugar will affect the flavor.
  OR
  Sugar: alternatively, you can simply add the granulated or liquid sugar of your choice – cane sugar, coconut sugar, maple, honey, agave. For a sugar-free option, you could even use erythritol or stevia. Add it to the watermelon when blending.
• Herbs: I added this below the syrup as I find the easiest way to infuse the watermelon shaved ice with herby flavor is by making a simple herby syrup (add the fresh herbs to the pan when heating the mixture). I recommend basil or mint. You can also serve it with herbs (as I’ve done here with mint).
• Lemon/Lime: I also already serve this granita with lime. However, if you’re using simple syrup, adding a tablespoon of lemon/lime juice (and even possibly a tsp or so of zest) should be mixed directly into the liquid when freezing.
• Strawberry: I recommend adding one cup of hulled, chopped strawberries for additional flavor.
• Rosewater: Just a little rosewater (or rose extract) will help to subtly fragrance the watermelon shaved ice. I recommend adding it to taste, as everyone’s palette is different.
• Alcohol: vodka, gin, and tequila make for delicious boozy additions to this watermelon granita. Just be aware that, like sugar, alcohol impacts how well the juice freezes. I recommend ¼ cup maximum, though I imagine that ½ cup would work but will yield a looser, slushier texture.
• Mini chocolate chips: this is more of a visual addition. When serving, a few “studded” chips added to the bowl/cup look like watermelon seeds.
• Watermelon kaki Gori: Kaki Gori is the Japanese version of shaved ice, which serves the dish with condensed milk (or condensed coconut milk for a vegan version). In this case, you can simply spoon some over the watermelon shaved ice when serving.

How to Make Watermelon Granita (Watermelon Shaved Ice)

Step 1: Prepare the watermelon

First, juice the watermelon. To do so, just scoop out the watermelon flesh from the rind, place it in a large bowl, and use an immersion blender or a large blender/food processor. Blend until smooth.

I then sieve the juice to eliminate excess pulp and seeds, but this isn’t necessary if you use seedless watermelon.

Pour the watermelon juice into a large, shallow tray or dish (as large as possible for your freezer).

Step 2: Freeze the mixture

Then transfer the dish to your freezer and allow it to freeze for 4-6 hours or overnight.

Just note that the freezing time will differ based on the size of the dish used, so it’s best to check after 4 hours, then every 2 hours after, until it’s almost entirely frozen but still “scrapeable.”

If you want chunkier watermelon granita, there’s no need to touch the melon at all during this time. Otherwise, you can remove it from the freezer every 2-3 hours and agitate/scrape with a fork for a smoother texture, or every 1-2 hours for the smoothest option.

During this time, the juice shouldn’t freeze entirely due to its natural sugars (especially if adding more sugar), which naturally inhibits the freezing process. Agitating it at least 1-2 times during the freezing process will make it easier to “fluff up” at the end, too.

After freezing, it’s time to scrape the mixture into the watermelon ice. To do so, you can simply use a fork.

To serve, transfer the watermelon granita to your bowl or glass of choice, serve with a lime wedge (just a squeeze or two tastes delicious over the watermelon ice mixture!), and some fresh mint leaves. I also topped mine with a dash of tajin (a combination of chili, lime, and salt). Or you could try drizzling some Chamoy!

How to Store Watermelon Granita

Once “scraped”/fluffed up into watermelon granita texture, you can keep the mixture in a container in the freezer for up to 5 days. Then, just re-fluff it a little bit just before serving, and you’re good to go!

Recipe Tips

• There’s no need to strain the juice: I do so for smoother watermelon ice and remove any seeds. However, it’s not necessary (especially when using seedless varieties).
• Sweeten to taste: if your watermelon is super sweet, I recommend skipping the simple syrup entirely. Otherwise, you can add it to the watermelon juice to taste. I recommend whipping up a large syrup batch and storing the leftovers in the fridge for lemonade and other uses.
• Save the watermelon rind: to make watermelon rind pickles (on my to-do list!)
• What’s the best dish to use for freezing? I recommend using a dish that won’t chip while you scrape the granita. Glass or ceramic would likely work best.

Refreshing Fruity Summer Drinks

• Peach Iced Tea
• Fresh kiwi strawberry juice
• Creamy Brazilian lemonade
• Bloody Mary (Classic or Virgin)
• Coconut vanilla bean crème Frappuccino
• Refreshing cucumber lemonade
• Creamy mango lassi
• Tropical guava smoothie
• Mexican horchata (agua de horchata)

Or browse through my complete list of 40+ summer drink recipes.

If you try this simple watermelon granita recipe, I’d love to hear your thoughts/questions below. Also, I’d appreciate a recipe card rating below, and feel free to tag me in your recipe recreations on Instagram @Alphafoodie!