
This cool and creamy Tongan watermelon drink has become my go to refresher for sweltering summer days. The bright flavors of juicy watermelon blend perfectly with coconut and pineapple and every pitcher brings a taste of island sunshine to my kitchen.
Ingredients
- Seedless watermelon: shredded for maximum juiciness and easy sipping Look for a watermelon that feels heavy for its size and has a yellow field spot
- Canned crushed pineapple with juice: adds tang and tropical sweetness Select a can with just fruit and juice no extra syrups
- Fresh shredded coconut: brings texture and a burst of coconut flavor If fresh is unavailable use frozen unsweetened coconut
- Canned coconut milk: creates a rich creamy base Shake the can well before opening to blend the cream
- Water: helps reach your favorite consistency Add slowly until it is just how you like it
- Granulated sugar to taste: brightens the fruit flavors Taste before adding you may not need much if your fruit is sweet
Step-by-Step Instructions
- Prepare the Watermelon:
- Use a fork or large holed grater to shred the watermelon over a large bowl letting all the juices collect This step brings out the most natural flavor and texture
- Combine the Fruits:
- Add the crushed pineapple with its juice shredded coconut and coconut milk to the bowl with watermelon Stir well to evenly distribute the pineapple and coconut throughout
- Adjust Consistency:
- Gradually add two to three cups of water while stirring Taste and check the thickness You want it drinkable but still rich and fruity
- Sweeten to Taste:
- Stir in sugar a little at a time tasting after each addition until you reach your perfect level of sweetness Some watermelons are sweet enough to need very little
- Chill and Serve:
- Cover the bowl or transfer to a pitcher and chill thoroughly Pour over crushed ice if you like or just serve cold

I love the fresh coconut in this recipe It brings a hint of chew and authenticity to the drink and always brings back memories of laughing with family around the table with condensation running down our glasses
Storage Tips
Store leftovers in a covered container in the refrigerator for two days Stir well before serving as the fruit may settle on the bottom. If you plan to keep it longer hold off on adding ice until before serving so it does not water down the drink
Ingredient Substitutions
No fresh coconut available Use finely shredded unsweetened dried coconut and soak it briefly in hot water to soften. You can swap canned pineapple chunks pulsed in the blender if crushed pineapple is not on hand
Serving Suggestions
Serve over crushed ice for extra chill or try using as a mixer for a summer cocktail Stir in a splash of lime or float a wedge of pineapple on top for a fun finish

Cultural Context
Otai is a beloved summer drink in Tonga where watermelon pineapple and coconut are classic flavors. Served at gatherings and celebrations it is as much about family connection as refreshment. Each family may have its twist based on what is available
Frequently Asked Questions
- → What type of watermelon works best for Otai?
Seedless watermelon is ideal for Otai, as it makes shredding and mixing easier, but any ripe, juicy watermelon can be used.
- → Can I substitute fresh pineapple for canned?
Yes, fresh pineapple may be used. Just make sure to include juice for sweetness and balance, or adjust sugar to taste.
- → How do I shred watermelon for this drink?
Use a large-holed grater, melon scraper, or fork to shred the watermelon flesh into small, juicy pieces.
- → Should Otai be served chilled?
Otai is best enjoyed cold. Serve it straight from the fridge or pour over plenty of crushed ice for extra refreshment.
- → Is coconut milk essential?
Coconut milk enhances the creamy texture and brings a tropical flavor, but you can reduce or omit it if preferred.
- → How can I adjust the sweetness?
Add granulated sugar gradually and taste as you go, since both pineapple and watermelon provide natural sweetness.