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Deliciously Chewy Watermelon Mochi You Can Make at Home

Published: Sep 20, 2025 by Emma Saviani ·

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Stepping into my kitchen on a warm summer day, the sun streaming in, I couldn't help but channel the vibrant sweetness of fresh watermelon. That's when the idea of Watermelon Mochi struck me—a delightful twist on the classic Japanese treat that’s not just a simple dessert but also a fun way to embrace homemade adventure. With just a few ingredients, this recipe is a quick triumph that promises both a luscious taste and a playful texture, making it perfect for those who love creating memorable experiences in the kitchen. Plus, it’s naturally gluten-free, so everyone can join in on the fun! Ready to dive into the joyful world of making Watermelon Mochi? Let’s get started!

Watermelon Mochi

Why is Watermelon Mochi a Must-Try?

Unique Flavor Fusion: Enjoy the refreshing taste of watermelon blended perfectly with the chewy mochi texture—a delightful combination that's hard to resist!

Easy to Make: With just a few straightforward steps and common ingredients, you'll be whipping up this treat in no time, making it an ideal recipe for beginners or experienced chefs alike.

Perfect for Summer: These chilled delights are perfect for warm days, offering a sweet, cooling treat that’s sure to impress your friends and family at summer gatherings.

Healthier Alternative: Made with natural ingredients like watermelon and maple sugar, you can indulge guilt-free while savoring a nutritious snack.

Customizable Fun: Get creative by adding your favorite flavors or even incorporating a chocolate drizzle for an extra touch of sweetness.

Dive into this simple yet delicious recipe, and if you're looking for more fun twists on classic dishes, check out my take on Homemade Mochi Ice Cream. Enjoy every bite of your homemade adventure!

Watermelon Mochi Ingredients

• To create your own delicious Watermelon Mochi, gather these simple, vibrant ingredients!

For the Mochi Dough

  • Watermelon juice – ¾ cup, fresh is best for a naturally sweet flavor.
  • Glutinous rice flour – 1 cup; this gives your mochi that signature chewy texture.
  • Tapioca starch – 2 tablespoons; it helps enhance the elasticity of the dough.
  • Maple sugar – 2 tablespoons; adds a lovely hint of sweetness and earthiness to your mochi.
  • Avocado oil – 1 tablespoon (plus more for greasing); a light oil that helps prevent sticking and enhances flexibility in the dough.

For Dusting

  • Extra glutinous rice flour – for dusting; prevents the mochi from sticking together and gives it a lovely finish.

Gather these ingredients and let’s embark on an exciting homemade adventure with Watermelon Mochi!

Step‑by‑Step Instructions for Watermelon Mochi

Step 1: Prepare the Watermelon Juice
Start by blending fresh watermelon cubes in a blender until smooth. Next, strain the mixture through a fine mesh sieve to remove seeds and pulp, ensuring you have ¾ cup of vibrant watermelon juice. This juicy base will be the heart of your Watermelon Mochi, adding a fresh and sweet flavor that’s simply irresistible.

Step 2: Mix the Dry Ingredients
In a spacious mixing bowl, whisk together the glutinous rice flour, tapioca starch, and maple sugar until evenly combined. Make a well in the center of the dry ingredients and pour in the freshly prepared watermelon juice along with 1 tablespoon of avocado oil. Whisk vigorously until the mixture is smooth and free of lumps, achieving a uniform batter texture.

Step 3: Cook the Mochi Dough
Heat a non-stick pan over low to medium heat, then drizzle in the remaining avocado oil. Pour the mochi mixture into the heated pan, stirring continuously for about 3 to 4 minutes. Watch closely as the mixture thickens into a sticky dough and deepens in color, signaling that it’s ready for the next step.

Step 4: Shape the Mochi
Once you have a thick, cohesive dough, lightly grease your hands with avocado oil and transfer the mochi onto a piece of parchment paper. Use your hands to shape the dough into a roughly square form, approximately 15 x 15 cm. Place the shaped mochi dough into a container, cover it, and refrigerate for 1 to 2 hours, allowing it to firm up nicely.

Step 5: Prepare for Cutting
After chilling, remove the mochi slab from the refrigerator and dust it generously with extra glutinous rice flour on all sides. This step is essential to prevent sticking as you cut. Use an oiled knife to slice the mochi into bite-sized cubes, ensuring each piece is coated lightly in flour to maintain that delightful, chewy texture of your Watermelon Mochi.

Step 6: Serve and Enjoy
Your Watermelon Mochi is now ready to be savored! Serve the pieces immediately for the best texture, letting friends and family indulge in this unique, homemade treat. The chewy consistency and sweet, refreshing watermelon flavor will surely be a hit, perfect for warm days or as a sweet surprise at gatherings.

Watermelon Mochi

Expert Tips for Watermelon Mochi

  • Fresh Juice Only: Use fresh watermelon juice for the best flavor; pre-packaged juices can be overly sweet and lack that vibrant taste.
  • Mind Your Heat: Cook the mochi dough over low-medium heat to prevent burning. Stir constantly to achieve the right sticky consistency.
  • Cool Completely: Ensure the mochi firms up in the fridge for at least 1-2 hours. Don’t skip this step; otherwise, the texture may become too soft.
  • Dust Generously: Dust all sides of the mochi with glutinous rice flour before cutting to prevent sticking. This simple step keeps your pieces intact and beautiful!
  • Slice with Care: Use an oiled knife to cut the mochi, and ensure it’s well-dusted for perfect, clean edges. Enjoy your homemade Watermelon Mochi fresh for the best experience!

What to Serve with Watermelon Mochi

Imagine a sunny picnic or a delightful summer gathering where your guests are enchanted by delectable flavors and the vibrant colors on their plates.

  • Fresh Fruit Salad: A medley of seasonal fruits enhances the sweet watermelon flavor, providing a refreshing burst of natural juices. This colorful dish is not only appealing but also complements the chewy texture of the mochi.

  • Matcha Green Tea: The earthy bitterness of matcha pairs beautifully with the sweet notes of watermelon mochi, creating a harmonious balance. Enjoying this combination elevates the entire dessert experience, making every bite memorable.

  • Coconut Sorbet: The creamy coconut flavor adds a tropical twist, making it an indulgent treat. Imagine sinking your spoon into smooth, cooling sorbet right alongside your mochi for a delightful contrast.

  • Miso Caramel Sauce: A drizzle of this unique sauce introduces a savory element that enhances the sweet and chewy characteristics of the mochi. It's a surprising choice that will leave your guests raving.

  • Yuzu Citrus Drink: A refreshing yuzu beverage brings a bright, zesty punch that cuts through the sweetness of watermelon mochi. This uplifting drink rounds out the meal perfectly, making it a delightful treat on warm days.

  • Chilled Green Tea Mochi: For the adventurous spirit, pairing watermelon mochi with its green tea counterpart creates a stunning visual and textural contrast, perfect for a gourmet experience.

Explore these delightful combinations, and you’ll effortlessly turn a simple treat into a vibrant spread that everyone will love!

Make Ahead Options

These Watermelon Mochi are a fantastic choice for busy home cooks looking to save time without sacrificing quality! You can prepare the mochi dough up to 24 hours in advance and store it in the refrigerator. Simply follow the first three steps of the recipe, then shape the dough into a square, wrap it in parchment paper, and refrigerate. To maintain the texture and prevent sticking, dust the mochi with extra glutinous rice flour before wrapping. When you’re ready to serve, take it out, slice into cubes, and dust again with flour if needed. Your Watermelon Mochi will be just as delightful and chewy, ready to impress your family and friends!

Watermelon Mochi Variations & Substitutions

Feel free to customize your Watermelon Mochi adventure with these delightful twists that will appeal to your culinary creativity!

  • Matcha Infusion: Add 1-2 teaspoons of matcha powder into the dry ingredients for a vibrant, earthy flavor that pairs beautifully with watermelon.

  • Fruit Medley: Swap watermelon juice with blended mango or strawberry juice for a tropical, fruity twist. Mixing flavors can elevate your mochi game!

  • Sweetener Switch: Replace maple sugar with coconut sugar or honey for a different sweetness profile, giving your mochi a unique and personal touch.

  • Creamy Variation: Stir in a tablespoon of coconut cream to create a luscious texture. This results in a creamier version that adds a lovely richness.

  • Add Some Spice: For those who love a kick, sprinkle in a pinch of chili powder or cayenne pepper to the mochi mixture before cooking. This will create a surprising interplay of sweet and spicy!

  • Nutty Crunch: Incorporate finely chopped nuts like almonds or pistachios into the mochi dough for a delightful crunch that contrasts beautifully with the chewy texture.

  • Cocoa Delight: Create a chocolate version by adding 2 tablespoons of cocoa powder to the dry ingredients. The rich chocolate flavor will turn this treat into a decadent surprise!

  • Chilled Delight: Serve your mochi with a scoop of homemade vanilla ice cream for an extra special dessert that adds a creamy contrast to the chewy mochi.

As you let your imagination run wild, you might also enjoy exploring my refreshing Mango Mochi or unique Chocolate Dulce de Leche Mochi recipes. Happy cooking, and enjoy your delightful Watermelon Mochi creations!

How to Store and Freeze Watermelon Mochi

Fridge: Keep your Watermelon Mochi in an airtight container in the fridge for up to 3 days. This will help maintain its chewy texture and vibrant flavor.

Freezer: For longer storage, place the sliced mochi in a single layer on a baking sheet to freeze for 1-2 hours, then transfer to a freezer-safe bag for up to 1 month.

Reheating: To enjoy frozen Watermelon Mochi, let it thaw in the fridge overnight. For an extra chewy texture, you can briefly microwave each piece for 10-15 seconds before serving.

Dusting Reminder: Always dust the mochi with extra glutinous rice flour before storing to prevent sticking and maintain its delightful shape and texture.

Watermelon Mochi

Watermelon Mochi Recipe FAQs

What type of watermelon should I use for the juice?
Absolutely, using ripe, sweet watermelon is key! Look for melons that are heavy for their size with a uniform shape and a creamy yellow spot, indicating it’s been ripening on the ground. Avoid watermelons with dark spots all over, which may suggest overripeness.

How should I store leftover Watermelon Mochi?
To maintain its delightful texture, store your Watermelon Mochi in an airtight container in the fridge for up to 3 days. This keeps the mochi fresher and chewy. Just remember to avoid placing it near strong-smelling foods to prevent flavor absorption!

Can I freeze Watermelon Mochi?
Yes, you can definitely freeze it! To freeze your Watermelon Mochi, first place the sliced pieces in a single layer on a baking sheet and freeze for 1-2 hours. Once they are firm, transfer the pieces into a freezer-safe bag for up to 1 month. This method helps prevent them from sticking together.

What can I do if my mochi dough is too sticky?
If your mochi dough is too sticky, don’t worry! Simply sprinkle more glutinous rice flour into the mixture and knead gently until it reaches a workable consistency. It's a common issue, but adding flour gradually will give you that perfect chewy texture you’re after.

Can I make this recipe vegan-friendly?
Very much so! The Watermelon Mochi is already vegan-friendly since it uses maple sugar and avocado oil. However, if you're considering alternatives for any ingredients, ensure your glutinous rice flour and tapioca starch have no non-vegan additives. Rest assured, your homemade treats can be enjoyed by everyone!

How do I tell if the mochi has gone bad?
Visual cues are quite helpful here! If you notice any mold growth, odd smells, or an excessively hard texture, it’s best to discard the mochi. Also, any changes in color can signal that it’s time to dispose of it and whip up a fresh batch of Watermelon Mochi.

Watermelon Mochi

Deliciously Chewy Watermelon Mochi You Can Make at Home

Enjoy a refreshing and unique treat with Watermelon Mochi, a delightful blend of watermelon and chewy mochi texture.
Print Pin Rate
Course: Dessert
Cuisine: Japanese
Keyword: dessert, Homemade, Mochi, summer treat, Watermelon Mochi
Prep Time: 15 minutes minutes
Cook Time: 10 minutes minutes
Chilling Time: 2 hours hours
Total Time: 2 hours hours 25 minutes minutes
Servings: 8 pieces
Calories: 80kcal

Equipment

  • Blender
  • Mixing bowl
  • non-stick pan
  • Parchment Paper
  • Knife
  • sieve

Ingredients

For the Mochi Dough

  • ¾ cup Watermelon juice fresh is best for a naturally sweet flavor.
  • 1 cup Glutinous rice flour this gives your mochi that signature chewy texture.
  • 2 tablespoons Tapioca starch it helps enhance the elasticity of the dough.
  • 2 tablespoons Maple sugar adds a lovely hint of sweetness and earthiness.
  • 1 tablespoon Avocado oil plus more for greasing.

For Dusting

  • Extra glutinous rice flour to prevent the mochi from sticking together.

Instructions

Step-by-Step Instructions for Watermelon Mochi

  • Prepare the Watermelon Juice: Blend fresh watermelon cubes until smooth, then strain to yield ¾ cup of juice.
  • Mix the Dry Ingredients: Whisk together glutinous rice flour, tapioca starch, and maple sugar in a bowl. Add watermelon juice and avocado oil, whisk until smooth.
  • Cook the Mochi Dough: Heat a non-stick pan, add avocado oil, pour in the mixture, stir continuously for 3-4 minutes until thickened.
  • Shape the Mochi: Transfer dough to parchment paper, shape into a 15 x 15 cm square, cover, and refrigerate for 1-2 hours.
  • Prepare for Cutting: Dust the chilled mochi slab with extra rice flour and slice into cubes using an oiled knife.
  • Serve and Enjoy: Serve pieces immediately for the best texture.

Notes

Use fresh watermelon juice for the best flavor, and ensure the mochi chills for proper texture. Dust with flour to prevent sticking while cutting.

Nutrition

Serving: 1piece | Calories: 80kcal | Carbohydrates: 20g | Protein: 1g | Fat: 2g | Saturated Fat: 0.5g | Monounsaturated Fat: 1g | Sodium: 10mg | Potassium: 50mg | Fiber: 1g | Sugar: 8g | Vitamin A: 300IU | Vitamin C: 10mg | Calcium: 20mg | Iron: 0.5mg

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Ellie Monroe

I’m Ellie, a 54-year-old home cook who believes the best recipes come from the heart. At Heavenly Recipe, I share comforting classics, sweet treats, and simple meals that anyone can make, just like the ones passed down through my family.

More about me

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