As the sun blazes overhead and the temperature rises, nothing tantalizes the senses quite like a chilled glass of ‘Otai’—a beloved Tongan watermelon drink that captures the essence of summer in every sip. This vibrant and refreshing beverage combines shredded watermelon, sweet crushed pineapple, and creamy coconut, making it a splendid treat for warm days. Best of all, you can whip up this delightful drink in just 15 minutes, so it won’t keep you from enjoying your summer adventures. With variations like adding mango or mountain apple, you can easily personalize it to suit your taste. Ready to take your summer gatherings to the next level? Let’s dive into the world of Otai and revel in the tropical flavors!

Why Choose Otai for Your Summer Refreshment?
Refreshing, this Tongan Watermelon Drink is the perfect antidote to hot summer days. Quick to make, you can prepare it in just 15 minutes, leaving you more time to relax and soak up the sun. Tropical delight, its medley of flavors from watermelon, pineapple, and coconut will whisk you away to an island paradise. Versatile, feel free to experiment with variations like mango or mountain apple for a fun twist. Whether you serve it at barbecues, picnics, or festive gatherings, it’s sure to be a crowd-pleaser. Why not pair it with some light summer snacks to enhance your dining experience?
Otai Ingredients
Get ready to make this refreshing drink!
For the Drink
- Shredded Seedless Watermelon – Provides natural sweetness and a refreshing base; be sure to use a ripe watermelon for the best flavor.
- Canned Crushed Pineapple – Adds a tropical flavor and sweetness; fresh pineapple can also be used for a more vibrant taste.
- Shredded Fresh Coconut – Imparts a rich coconut flavor and chewy texture; if fresh isn’t available, dried coconut works in a pinch.
- Canned Coconut Milk – Enhances creaminess and coconut flavor; consider substituting with heavy cream or evaporated milk for a different twist.
- Water – Adjusts the drink’s consistency to your preference; coconut water is a great substitute to amplify the coconut essence.
- Granulated Sugar – Sweetens the drink to your liking; start with less sugar, tasting as you go, since the sweetness of the watermelon can vary.
Enjoy crafting your own Otai (Tongan Watermelon Drink) with these delightful ingredients!
Step‑by‑Step Instructions for Otai (Tongan Watermelon Drink)
Step 1: Combine Ingredients
In a large mixing bowl, start by adding 2.3 pounds of shredded seedless watermelon, 20 ounces of canned crushed pineapple with its juice, and 1/2 cup of shredded fresh coconut. Use a sturdy spoon to gently mix these ingredients together until they are evenly combined, showcasing the vibrant colors of this Tongan watermelon drink.
Step 2: Add Coconut Milk
Pour in one can (13.5 ounces) of coconut milk into the mixture and stir well until everything is thoroughly blended. The coconut milk will add a creamy richness to the Otai, making it a delightful treat on hot summer days. Pay attention to achieving a smooth consistency while maintaining some texture from the shredded fruits.
Step 3: Adjust Consistency with Water
Gradually add 2 to 3 cups of water into the bowl, stirring constantly as you go. This will help you adjust the drink’s thickness based on your preference. If you like a more refreshing and thinner beverage, aim for a higher water ratio; for a creamier consistency, use less water.
Step 4: Sweeten to Taste
Next, add granulated sugar (about 3 tablespoons) to the bowl, mixing it thoroughly into the drink. Taste the Otai and adjust the sweetness according to your preference, bearing in mind the natural sweetness of the watermelon. If needed, add more sugar gradually until the flavor meets your desire.
Step 5: Chill and Serve
Finally, pour the Otai into a pitcher and refrigerate it for at least 30 minutes to chill thoroughly. This drink is best served cold, so during this chilling time, prepare some crushed ice in glasses. Once ready, pour the refreshing Tongan watermelon drink over the ice and savor the tropical flavors!
Step 6: Optional Garnish
If you’d like to elevate the presentation, consider garnishing each glass with a wedge of fresh watermelon or a sprinkle of shredded coconut. This will add a beautiful touch while enhancing the overall tropical experience of your homemade Otai, making it perfect for sharing at summer gatherings.

What to Serve with Otai (Tongan Watermelon Drink)
As you sip on this vibrant drink, consider delightful pairings that enhance its tropical vibe and satisfy your palate.
- Grilled Shrimp Skewers: The smoky flavor of grilled shrimp complements the sweetness of Otai, creating a delightful contrast.
- Fresh Fruit Salad: A light and refreshing mix of seasonal fruits will harmonize perfectly, brightening up your summer gathering.
- Coconut Rice: This aromatic side dish echoes the coconut notes in Otai, offering a deliciously cohesive experience.
- Tropical Salsa: A mango or pineapple salsa provides a zesty twist, perfectly balancing the creaminess of the drink.
- Crab Cakes: The tender, savory flavors of crab cakes paired with a tangy dipping sauce add a touch of elegance.
- Tortilla Chips with Guacamole: The crunch of chips and creamy guacamole make for a perfect snack that complements the drink.
- Sparkling Water: Refreshing and light, sparkling water enhances the tropical feel while cleansing the palate between sips.
- Key Lime Pie: For dessert, its tartness edges out the sweetness of Otai, creating a perfectly balanced ending to any meal.
- Chocolate-Covered Pineapple: A sweet treat that echoes the flavors of the drink, making for a delightful tropical indulgence.
Make Ahead Options
Preparing the Otai (Tongan Watermelon Drink) ahead of time makes it an ideal choice for busy summer days! You can mix all the ingredients, except for the water, up to 24 hours in advance. Combine the shredded watermelon, crushed pineapple, shredded coconut, and coconut milk in a large bowl, then cover and refrigerate. Keep the water separate until just before serving to maintain that refreshing consistency. When you’re ready to enjoy, simply add the water to your mixture, sweeten to taste, and give it a good stir. This way, you’ll have a deliciously tropical drink ready without the last-minute fuss, perfect for summer gatherings!
Storage Tips for Otai (Tongan Watermelon Drink)
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Fridge: Store your Otai in an airtight container in the refrigerator for up to 2 days. This helps maintain its freshness and delightful flavors.
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Stir Before Serving: Before you serve, give the drink a good stir to recombine the ingredients. The natural separation is normal due to the fruit content.
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Freezer: For longer storage, you can freeze Otai in individual portions using ice cube trays. It can stay fresh for up to 2 months. Thaw in the fridge when you’re ready to enjoy!
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Reheating: While Otai is best served chilled, if you prefer it a bit warmer, gently reheat it on the stovetop over low heat until just warm; avoid boiling to preserve texture.
Variations & Substitutions for Otai
Customize your Otai (Tongan Watermelon Drink) to suit your taste preferences and make it uniquely yours!
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Mango Delight: Add chopped ripe mango for a delicious tropical twist that enhances the drink’s vibrant flavors.
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Mountain Apple: Incorporate diced mountain apple (fekkika) for a wonderful crunchy texture and a unique hint of sweetness.
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Fresh Coconut: Swap shredded coconut for fresh coconut chunks to elevate the authentic flavor and provide a more satisfying chew.
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Coconut Water: Replace regular water with coconut water to deepen the coconut essence, giving your drink an extra refreshment boost.
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Pineapple Variations: Use fresh pineapple instead of canned for a more robust, zesty flavor that brightens the drink beautifully.
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Honey Sweetener: Try substituting granulated sugar with honey for a naturally sweeter alternative that brings a lovely floral note.
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Spice It Up: Add a pinch of cayenne pepper or a splash of ginger juice for a subtle warmth that adds complexity to your Otai.
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Herbal Infusion: Toss in a few mint leaves or basil for a refreshing herbaceous finish that pairs wonderfully with the fruity flavors.
Feel free to explore these variations, and even consider mixing and matching! If you’re looking for more ideas, check out our delightful guide on tropical summer drinks or learn how to incorporate fresh fruits into your beverages for a refreshing twist. Each variation is an opportunity to create a drink that fits perfectly with your summer celebrations!
Expert Tips for Making Otai
- Choose Ripe Watermelon: Use a perfectly ripe watermelon for the sweetest and juiciest base. Overripe or under ripe can affect the flavor balance.
- Texture Matters: Avoid blending ingredients for a smooth drink; the delightful texture from shredded fruit is essential for that authentic Otai experience.
- Taste as You Go: Adjust sugar gradually; starting with too much can mask the natural sweetness of the watermelon and pineapple.
- Cooling Time: Chill your Otai for at least 30 minutes before serving to enhance its refreshing qualities; serve over ice for best results.
- Garnish for Flair: Consider garnishing with a wedge of fresh watermelon or mint leaves for an extra burst of color and flavor before serving.

Otai (Tongan Watermelon Drink) Recipe FAQs
How do I choose a ripe watermelon for Otai?
Absolutely! Look for a watermelon that feels heavy for its size and has a uniform shape. A ripe watermelon typically has a creamy yellow spot on its underside, indicating it ripened on the ground. Look for one that’s firm but has a slight give when pressed; avoid any with dark spots all over, as these can indicate overripeness.
How should I store leftover Otai?
Very! Store your Otai in an airtight container in the refrigerator for up to 2 days to maintain its refreshing flavors. The ingredients may separate over time, so be sure to stir well before serving to bring the vibrant drink back together.
Can I freeze Otai?
Definitely! To freeze Otai, pour it into ice cube trays for easy portioning. It can stay fresh in the freezer for up to 2 months. When you’re ready to enjoy, simply transfer the cubes to the refrigerator to thaw. For an instant tropical treat, toss a few frozen cubes directly into your smoothie or drink!
What should I do if my Otai is too sweet?
If you find your Otai overly sweet, you can balance it by adding a bit more coconut milk or water to dilute the sweetness. Start with a little at a time, taste-testing as you go, until you achieve the perfect flavor. Typically, a squeeze of fresh lime can also help cut through the sweetness for a refreshing contrast.
Is Otai safe for pets?
Great question! While the ingredients in Otai are safe for humans, be cautious about feeding any to pets. Watermelon itself is safe in small amounts for dogs and cats, but avoid giving them any added sugar or coconut. Always consult your veterinarian before introducing new foods into your pet’s diet.
How can I make a healthier version of Otai?
You can certainly create a lighter version of Otai! Consider reducing or omitting the added sugar, as ripe watermelon and pineapple naturally provide sweetness. Use fresh coconut instead of shredded, and for a creamier base, substitute some of the coconut milk with yogurt. This not only reduces sugar but adds a delightful tang, making a fresh and nutritious spin on the traditional Otai.

Refreshing Otai: Tongan Watermelon Drink for Summer Fun
Ingredients
Equipment
Method
- In a large mixing bowl, combine shredded watermelon, canned crushed pineapple with juice, and shredded fresh coconut.
- Pour in the coconut milk and stir well until everything is thoroughly blended.
- Gradually add water, adjusting the drink's thickness to your preference.
- Add granulated sugar to taste, mixing it thoroughly into the drink.
- Pour the Otai into a pitcher and refrigerate for at least 30 minutes to chill.
- Serve over ice and enjoy, optionally garnishing with fresh watermelon or shredded coconut.

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