
Otai Tongan watermelon drink has become a summertime staple at my house every year Its blend of ripe watermelon sweet pineapple and creamy coconut milk creates a naturally refreshing treat that is perfect for crowds or just cooling down in the heat
The first time I mixed this up was for a backyard barbecue on a hot day and now friends ask for it at every gettogether Its hands down our favorite way to celebrate island flavors
Ingredients
- Seedless watermelon: Choose one that feels firm and heavy for its size indicating juiciness
- Canned crushed pineapple with juice: Adds a sweet tropical tang Use pineapple packed in juice rather than syrup for a more balanced flavor
- Shredded fresh coconut: Delivers texture and coconut richness Fresh is best but unsweetened bagged coconut works in a pinch
- Canned coconut milk: Gives the drink its signature creamy body Go for fullfat for richness and a smooth finish
- Water: Used to adjust to the ideal thickness Cold filtered water keeps the drink tasting clean
- Granulated sugar: Helps balance the tartness and enhance fruitiness Taste as you go so it is not overly sweet
StepbyStep Instructions
- Prep the Fruit:
- Use a coarse box grater or food processor to shred the watermelon catching the juice Carefully collect any excess liquid so nothing goes to waste
- Combine Base Ingredients:
- Layer the shredded watermelon crushed pineapple with its juice and the shredded coconut into a large mixing bowl or pitcher
- Add Coconut Milk:
- Pour in the coconut milk stirring gently but thoroughly until the mixture looks creamy and evenly pale Pink streaks from the watermelon are normal
- Adjust Consistency:
- Slowly add cold water stirring and tasting as you go until you reach your preferred texture The drink should be fluid and refreshing but not too thin
- Sweeten to Taste:
- Add the granulated sugar one spoon at a time tasting after each addition Stir well to fully dissolve the sugar The amount will depend on your fruit and your sweet tooth
- Chill and Serve:
- Cover and refrigerate until well chilled For serving pour over crushed ice in tall glasses Garnish with extra coconut or a wedge of watermelon if you like

Fresh coconut has always been my favorite part of this recipe Its subtle crunch and nutty sweetness reminds me of the coconut trees in my grandmother’s backyard I will never forget everyone helping to crack open coconuts together before birthday celebrations
Storage Tips
Store any extra Otai in a well sealed pitcher or jar in the fridge It stays fresh for about two to three days If you notice it separating just give it a quick stir before serving since the coconut milk likes to rise to the top
Ingredient Substitutions
If you cannot find fresh coconut unsweetened shredded coconut from the baking aisle does the job In place of watermelon try ripe cantaloupe or even mango for a different but delicious spin You can swap the crushed pineapple for fresh pineapple chunks blended with their juice
Serving Suggestions
Otai is perfect over lots of crushed ice for parties For a fun touch thread a chunk of pineapple or watermelon onto drink stirrers For a lighter variation use more water to make a thirstquenching punch

A Taste of Tonga
Otai is a beloved Tongan drink often served at feasts and family gatherings Its roots go back generations It is a symbol of celebration and sharing blending the bounty of island fruits with coconut harvested by hand Many Polynesian families take great pride in their personal Otai recipes
Recipe FAQs
- → What kind of watermelon works best?
Seedless watermelon is preferred for easy shredding and a smoother texture. Ensure it's ripe and sweet for the best flavor.
- → Can fresh pineapple be used instead of canned?
Yes, fresh pineapple can replace canned. Include any juice released during crushing to preserve flavor and moisture.
- → Is shredded fresh coconut essential?
Shredded fresh coconut is traditional and gives great texture. If unavailable, unsweetened dried coconut can be used in a pinch.
- → How is the sweetness adjusted?
Add granulated sugar to your preference. Taste as you mix and dissolve the sugar thoroughly before serving.
- → Can Otai be made ahead of time?
Yes, prepare in advance and chill in the refrigerator. Stir well before serving and add ice just before enjoying.