Cool off with a bright, refreshing Watermelon Cucumber Granita made from just four simple ingredients. This icy, slushy dessert is effortless to prepare, requires no special equipment, and makes an ideal summer treat or palate cleanser. The combination of sweet watermelon, cool cucumber, and a squeeze of lime feels light and revitalizing—like a frozen spa water in a spoon.
Watermelon Cucumber Granita
This granita is wonderfully simple and naturally dairy-free and vegan when made without alcohol. If you’d like a grown-up version, stir in a splash of gin, vodka, or rum just before serving for a light, boozy granita cocktail. Otherwise, the non-alcoholic version is a clean, low-calorie dessert that highlights seasonal produce.
What is a granita?
Granita is a classic Italian frozen dessert made from fruit, a sweetener, and a little liquid. Compared to sorbet, granita is intentionally coarser and icier: it’s scraped with a fork while freezing to create flaky, crunchy ice crystals rather than a smooth scoopable texture.
Origins of granita
Granita traces its roots to Sicily, where it evolved during the Middle Ages. Early versions used snow brought down from Mount Etna, mixed with fruit juices or honey, and were prized for their cooling properties. In Sicily, it’s traditionally enjoyed year-round and is even served with brioche for breakfast in some places.
Why you’ll love this granita
A frozen treat is a little moment of relief on a hot day. This recipe balances the juicy sweetness of watermelon with the crisp, cooling note of cucumber and a bright lift from lime. It’s naturally light, easy on calories, and versatile enough to adapt to many flavor variations.
- Just four ingredients: watermelon, cucumber, sweetener, and lime juice.
- Easy to make: You’ll only need a blender or food processor and a baking pan for freezing.
- Low sugar option: Use a monk fruit or another zero-calorie sweetener to keep it sugar-free, or use granulated sugar if you prefer.
- Dietary friendly: Naturally dairy-free, vegan, vegetarian, and gluten-free.
If you try this granita, snap a photo and share it with friends—it’s a pleasingly photogenic dessert that looks as fresh as it tastes.
Ingredients for Watermelon Cucumber Granita
All you need are four main ingredients. Quantities are listed in the recipe card below.
- Watermelon: Use ripe, in-season watermelon for the best sweetness and flavor.
- Cucumber: An English or Persian cucumber works well—peel and remove seeds for a smooth puree.
- Sweetener: Monk fruit sweetener for a zero-calorie option, or granulated sugar if you prefer.
- Lime juice: Freshly squeezed lime brightens and balances the fruit.
How to make granita
Plan ahead: the hands-on time is short, but the freezing and scraping steps take several hours. The process is mostly hands-off and straightforward.
- Puree: In a blender or food processor, combine the watermelon, cucumber, sweetener, and lime juice. Blend until completely smooth.
- Freeze, then scrape: Pour the puree into a 9×9-inch metal baking pan and freeze until nearly set (about 1–1½ hours). Use a fork to scrape and break up any ice, then return to the freezer. Repeat every hour or so until the mixture is fully frozen into flaky, snow-like crystals (about 5 hours total).
- Serve: Spoon the granita into chilled glasses or bowls. Garnish with thin cucumber slices if desired. For a cocktail-style treat, stir in a shot of vodka, gin, or rum just before serving.
Variations
- Different fruit: Substitute pineapple, mango, or strawberries for watermelon.
- All fruit version: Omit cucumber and add more watermelon or another fruit for a purely fruity granita.
- Citrus swaps: Use lemon or orange juice instead of lime for a different citrus note.
- Herb addition: Add a handful of fresh mint to the blender for a watermelon-mint granita.
- Alcohol: Stir in vodka, gin, or rum just before serving to make a granita cocktail.
Storage
Store granita in an airtight container in the freezer for up to one month. Before serving, let it sit at room temperature a few minutes and scrape with a fork to refresh the crystal texture if needed.
Recipe
Watermelon Cucumber Granita (Yield: 6 servings)
Prep time: 20 minutes. Freeze time: about 5 hours. Serving size: 1 cup.
Ingredients
- 4 1/2 cups seedless watermelon, peeled and cubed (about 1/2-inch cubes)
- 1 1/2 cups cucumber, peeled, seeded, and chopped (English or Persian)
- 1/4 cup monk fruit sweetener or granulated sugar
- 1 tablespoon fresh lime juice
- Thin cucumber slices, optional for garnish
Instructions
- In a blender or food processor, puree the watermelon, cucumber, sweetener, and lime juice until completely smooth.
- Pour the mixture into a 9×9-inch metal baking pan and freeze for about 1½ hours until nearly set. Use a fork to scrape and break up any chunks.
- Return the pan to the freezer. After another 1–2 hours, scrape again. Repeat scraping every hour or so until the granita is fully frozen and has formed flaky, snow-like crystals (about 5 hours total).
- Divide the granita among serving glasses or bowls. Garnish with cucumber slices if desired and serve immediately. If using alcohol, stir it in just before serving.
Nutrition (per 1 cup serving)
- Calories: 38 kcal
- Carbohydrates: 17.5 g
- Protein: 1 g
- Fat: 0.5 g
- Fiber: 0.5 g
- Sugar: 7.5 g
- Sodium: 2 mg
More frozen desserts to try
If you enjoy granita, you might also like banana nice cream, blueberry frozen yogurt, cherry sorbet, piña colada popsicles, or frozen banana pops. Each offers a simple, fruity way to stay cool on warm days.