Otai Tongan Watermelon Drink

By: Barbara Updated on Thu, 22 May 2025 12:53:37 GMT Refreshing Beverages
Barbara, recipe developer and home cook at Graceful Flavors
Barbara

Hi, I'm Barbara, the recipe developer and home cook behind Graceful Flavors. I share approachable recipes with clear steps, familiar ingredients, and delicious results for real everyday kitchens.

Updated on Thu, 22 May 2025 12:53:37 GMT

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Two glasses of pink drinks on a table.

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
Two glasses of pink drinks on a table.
Two glasses of pink drinks on a table.

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

Two glasses of pink drinks on a table.
Two glasses of pink drinks on a table.

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.

4.80 from 19 votes

Otai Tongan Watermelon Drink

Prep Time:
15 Minutes
Cook Time:
~
Total Time:
15 Minutes
Servings:
1 large pitcher
Two glasses of pink drinks on a table.

A sweet Tongan drink with watermelon, pineapple, coconut, and chilled for ultimate tropical refreshment.

Ingredients

  • Main Ingredients

  • 1 kilogram seedless watermelon, shredded
  • 567 grams canned crushed pineapple with juice
  • 50 grams shredded fresh coconut
  • 400 milliliters canned coconut milk
  • 473-710 milliliters water
  • 40 grams granulated sugar, or to taste

Instructions

1.

1. Combine Fruits and Coconut: In a large mixing bowl, add shredded watermelon, crushed pineapple with its juice, and shredded coconut.

2.

2. Add Coconut Milk: Pour the coconut milk into the fruit mixture and stir thoroughly to combine.

3.

3. Adjust Consistency: Gradually mix in 473 to 710 milliliters of water until the drink reaches the preferred consistency.

4.

4. Sweeten: Stir in granulated sugar to taste, ensuring it is fully dissolved.

5.

5. Chill and Serve: Serve the beverage well chilled with crushed ice if desired.

Notes

  1. For optimal flavor, use freshly shredded coconut and adjust the sweetness to personal preference.

Tools You'll Need

  • Large mixing bowl
  • Grater or melon scraper
  • Stirring spoon

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains coconut

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 160
  • Total Fat: 4 g
  • Total Carbohydrate: 33 g
  • Protein: 2 g