Summer in a glass just got a whole lot easier! This Ninja Slushi Watermelon Daiquiri blends juicy watermelon, smooth white rum, and zesty lime into the most refreshing frozen cocktail you’ll sip all season.
Cool down and sip into summer with a Ninja Slushi Watermelon Daiquiri! This refreshing frozen cocktail blends the juicy sweetness of ripe watermelon with the zesty kick of lime and smooth white rum, all whipped into a perfectly icy slush in your Ninja Slushi machine. It’s the ultimate poolside drink, party crowd-pleaser, or backyard barbecue companion.
The Ninja Slushi Watermelon Daiquiri takes the classic frozen daiquiri to a whole new level by swapping in fresh watermelon juice for that unmistakable summer flavor. Whether you’re hosting friends, lounging in the sun, or just craving a fruity frozen treat, this slushie delivers bar-quality results with almost zero effort.
If you love Ninja Slushi Machine recipes, be sure to try my Ninja Slushi Mango Daiquiri, Ninja Slushi Lemonade Slushi, and Ninja Slushi Sangria Wine Slushie.
Why You Will Love This Recipe!
- Pure Summer in a Glass — Sweet watermelon and zesty lime are the ultimate refreshing combo.
- Effortlessly Easy — Just whisk, pour, and let your Ninja Slushi do the work.
- Perfectly Slushy Texture — Smooth, icy, and exactly the consistency you’d get from a beachside bar.
- Customizable — Adjust the sugar, rum, or even swap in flavored rum for a unique twist.
- Party-Ready — Makes 12 servings, perfect for entertaining a crowd.
Ingredients Needed
- Fresh Watermelon Juice: The star of the show; sweet, hydrating, and packed with summer flavor.
- White Rum: Adds the classic daiquiri kick with a smooth, clean finish.
- Fresh Lime Juice: Brightens the watermelon and balances the sweetness.
- Granulated Sugar or Honey: Enhances the natural sweetness and helps achieve the perfect slush texture.
How To Make Ninja Slushi Watermelon Daiquiri
Step 1: Cut a seedless watermelon into chunks, removing the rind. Add about 4 to 5 cups of watermelon chunks to a blender and blend on high for 30 to 60 seconds, until completely smooth and liquefied.
Step 2: Pour the blended watermelon through a fine mesh strainer into a large pitcher to remove the pulp. Press the pulp with the back of a spoon to extract every last drop of juice. You should end up with about 3 cups of fresh watermelon juice.
Step 3: Add the white rum, fresh lime juice, and granulated sugar to the pitcher with the watermelon juice. Whisk everything together until the sugar is fully dissolved and the mixture is smooth.
Step 4: Pour the mixture into the Ninja Slushi vessel, making sure to stay within the fill lines.
Step 5: Select the SPIKED SLUSH setting. The Ninja Slushi will begin at the optimal temperature to achieve the perfect slushy texture. Adjust if needed.
Step 6: When the frozen drink reaches the ideal slushy consistency, the unit will beep three times. Pour into glasses, garnish with a watermelon wedge or lime slice, and serve immediately!
Ninja Slushi Watermelon Daiquiri Recipe Tips
- Use a Ripe, Seedless Watermelon — The riper your watermelon, the sweeter and more flavorful your daiquiri will be. Seedless varieties make juicing much easier.
- Strain Your Watermelon Juice — For the smoothest slush texture, strain the juice through a fine mesh sieve to remove any pulp.
- Chill Your Ingredients — Pre-chilling your watermelon juice and other ingredients helps the Ninja Slushi reach the perfect consistency faster.
- Adjust Sweetness to Taste — Watermelon varies in sweetness, so taste your juice before adding sugar and adjust accordingly.
- Try Flavored Rum — Coconut rum adds a tropical twist, while spiced rum gives it a warm, complex note.
- Garnish Generously — A salted rim, watermelon wedge, fresh mint, or lime wheel elevates this drink from casual to cocktail-bar worthy.
Storing
For best results, the Ninja Slushi Watermelon Daiquiri should be enjoyed immediately for that perfect slushy texture. If you have leftovers, pour them into an airtight container and freeze for up to 24 hours. Let it sit at room temperature for 5 to 10 minutes before re-blending or stirring to restore the slush consistency.
Ninja Slushi Watermelon Daiquiri Recipe FAQs
Can I use store-bought watermelon juice? Yes! Store-bought watermelon juice works great when fresh isn’t available. Just be sure to check the sugar content and adjust the added sugar in the recipe accordingly.
What type of rum is best for this recipe? White rum is the traditional choice for daiquiris because of its clean, smooth flavor. However, coconut rum adds a tropical flair, and spiced rum brings warm, complex notes that pair beautifully with watermelon.
Can I make this non-alcoholic? Absolutely! Simply omit the rum and replace it with extra watermelon juice, coconut water, or lemon-lime soda for a refreshing watermelon mocktail slushie.
How do I make my own watermelon juice? Blend chunks of fresh, seedless watermelon in a blender until smooth, then strain through a fine mesh sieve. About 4 to 5 cups of cubed watermelon yields roughly 3 cups of juice.
Can I add other fruits? Definitely! Strawberries, raspberries, or even cucumber pair wonderfully with watermelon. Just blend them in with the watermelon and strain before adding to the Ninja Slushi.
Why isn’t my slush freezing properly? Make sure your ingredients are cold before adding them to the machine, and check that you haven’t exceeded the maximum fill line. Too much alcohol can also prevent proper freezing, so stick to the recipe ratios.
Equipment Used
Ninja SLUSHi 72 oz Professional Frozen Drink Maker, 3 Preset Settings Slushie Machine
More Ninja Slushi Recipes
- Ninja Slushi Mango Daiquiri
- Ninja Slushi Coke Slushie
- Ninja Slushi Root Beer Float Slush
- Ninja Slushi Sangria Wine Slushie
- Ninja Slushi Lemonade Slushi
Ninja Slushi Watermelon Daiquiri
Description
Ingredients
- 5 cups seedless watermelon, cubed (to yield about 3 cups juice)
- 1/4 cup white rum, adjust to taste
- 2 tablespoons fresh lime juice
- 3 tablespoons granulated sugar, adjust to taste, or honey
Instructions
- Cut a seedless watermelon into chunks, removing the rind. Add about 4 to 5 cups of watermelon chunks to a blender and blend on high for 30 to 60 seconds, until completely smooth and liquefied.
- Pour the blended watermelon through a fine mesh strainer into a large pitcher to remove the pulp. Press the pulp with the back of a spoon to extract every last drop of juice. You should end up with about 3 cups of fresh watermelon juice.
- Add the white rum, fresh lime juice, and granulated sugar to the pitcher with the watermelon juice. Whisk everything together until the sugar is fully dissolved and the mixture is smooth.
- Pour the mixture into the Ninja Slushi vessel, making sure to stay within the fill lines.
- Select the SPIKED SLUSH setting. The Ninja Slushi will begin at the optimal temperature to achieve the perfect slushy texture. Adjust if needed.
- When the frozen drink reaches the ideal slushy consistency, the unit will beep three times. Pour into glasses, garnish with a watermelon wedge or lime slice, and serve immediately!
Equipment
- Ninja Slushi 72 oz Professional Frozen Drink Maker
- Blender
- Fine mesh strainer
- Large pitcher
- Whisk
- Measuring Cups and Spoons
Notes
- Choose a ripe watermelon for the sweetest, most flavorful juice. Look for a heavy melon with a creamy yellow field spot.
- Strain twice for an ultra-smooth slushie texture.
- Chill your ingredients before blending for the fastest results in the Ninja Slushi.
- For a mocktail version, simply omit the rum and add an extra 1/4 cup of watermelon juice or coconut water.
- Try flavored rum — coconut, spiced, or even pineapple rum adds a fun tropical twist.
- Garnish ideas: watermelon wedge, lime wheel, fresh mint, or a sugared rim.
Nutrition
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