
This refreshing twist on dessert is perfect for warm weather or whenever you want something light and unique. Juicy watermelon makes a playful base for creamy coconut sticky rice while mint keeps it bright and lively. Watermelon sushi always surprises guests and never fails to impress.
I came up with this dessert for a picnic and now everyone insists I bring it to summer potlucks. No one ever guesses how simple it is.
Ingredients
- Glutinous rice: This gives the classic sticky texture look for pure white grains with no yellow tint and check packaging for glutenfree if needed
- Coconut milk: Gives a luxurious creaminess and subtle coconut taste Use fullfat canned coconut milk for best results shake well before using
- Sugar: Sweetens and balances the coconut flavor Organic cane sugar adds gentle flavor or you may use any mild sugar
- Salt: Brightens the flavors and gives depth A pinch goes a long way
- Seedless watermelon: The star with its beautiful color and juicy sweetness Pick one that feels heavy for its size with a uniform deep green color
- Fresh mint leaves: Delivers a cooling herbal aroma Pick mint that is vibrant and free of spots
Step-by-Step Instructions
- Prep the Rice:
- Rinse the glutinous rice under cool running water until the water is clear. This removes extra starch and prevents gumminess. Soak the rice for at least one hour which makes it tender and yields the signature sticky texture. Drain thoroughly before cooking.
- Cook the Sticky Rice:
- Combine soaked rice with coconut milk sugar and salt in a medium saucepan. Stir thoroughly to mix the coconut milk evenly. Bring to a gentle boil over medium heat then reduce heat to low. Cover tightly and simmer for 15 minutes until rice is soft and the liquid has absorbed. Do not peek during cooking.
- Shape the Watermelon:
- While the rice cooks slice the watermelon into slabs about half an inch thick. Use a long sharp knife for tidy edges. Cut each slab into rectangles or squares so each piece is bite sized and resembles sushi. Blot melon pieces dry with a clean towel for easier assembly.
- Cool and Handle the Rice:
- Once rice is cooked let it cool uncovered for about five minutes. Stir gently to loosen and help it cool faster. This makes it easier to shape on the watermelon.
- Assemble the Sushi:
- Place a watermelon piece on a platter. Scoop a generous spoonful of sticky coconut rice onto the top and use moist fingers or the back of a spoon to gently press it flat. Repeat until all pieces are topped.
- Finish and Garnish:
- Lay the watermelon sushi pieces on a clean serving platter. Top each with a small mint leaf pressing slightly so it sticks. Serve chilled for maximum refreshment.

One of my favorite parts is the aroma of fresh mint which always reminds me of family garden days. My niece loves arranging the mint leaves just so and laughs about how fancy it looks.
Storage Tips
Watermelon sushi is best served the day you make it as melon tends to release water the longer it sits. If needed store in an airtight container in the fridge for up to one day. Place a layer of parchment or wax paper between layers and keep mint separate until serving to avoid wilting.
Ingredient Substitutions
Mango or pineapple make great alternatives to watermelon for a different fruity take. You can swap the coconut milk for almond milk but the texture and flavor will change. Maple syrup or agave can be used in place of sugar if you want a natural sweetener.
Serving Suggestions
Serve this dessert as part of a summer brunch with iced tea or sparkling water. It is also a showstopper at picnics baby showers or as a healthy treat for kids who want to help assemble.

Cultural Background
This dish draws inspiration from classic Thai mango sticky rice which traditionally features sweet rice layered with tropical fruit. The watermelon and sushi shape bring a playful Japanese twist making it a true fusion recipe.
Recipe FAQs
- → Can I use regular rice instead of glutinous rice?
Glutinous rice gives the best sticky texture, but sushi rice is the closest alternative. Regular rice may not hold shape well.
- → How do I shape the watermelon for sushi?
Slice watermelon into thick rectangles or squares resembling traditional sushi pieces for an appealing look.
- → What fruits can I substitute for watermelon?
Mango, pineapple, or kiwi are excellent options that complement coconut sticky rice and provide vibrant color.
- → Is this dessert suitable for vegans and gluten-free diets?
Yes, using plant-based ingredients makes this naturally vegan and gluten-free. Always check package labels to confirm.
- → Can I prepare coconut sticky rice in advance?
Sticky rice can be made a few hours ahead. Cool completely before assembling for the best texture and flavor.