
This watermelon lime slush with tulsi basil is super refreshing and ready in just 5 minutes! Frozen cubes of sweet summer watermelon are blended with lime juice, coconut water, agave nectar, tulsi basil, and a pinch of salt for a delicious and easy summer drink that’s perfect for all ages.
A Refreshing 5-Minute Watermelon Lime Slush for Hot Summer Days
It’s been regularly 100+ degrees every day for the past few weeks here which means staying hydrated is a really big priority! I whipped up this watermelon slush the other day to combat my boring water routine but still give me some delicious and refreshing summer hydration. It’s super simple to make since everything is tossed in a blender. The only thing you have to remember to do ahead of time is to freeze the watermelon!
PRO TIP: freeze a big batch of watermelon ahead of time so you can make several drinks with it throughout the week!

Key Watermelon Slush Ingredients
- Watermelon – I prefer a seedless watermelon for this but it’s entirely up to you! You’ll cut up your watermelon and freeze it before using it in the recipe.
- Lime Juice – the tanginess from the lime complements the sweetness of the watermelon. Plus, it helps with hydration!
- Agave Nectar – adds a little sweetness but is completely optional and can be left out if you prefer your slush less sweet or if you’re avoiding added sugars.
- Coconut Water – adds the necessary liquid to be able to blend the frozen watermelon into a slushy consistency. It also provides really great hydration!
- Sea Salt – a tiny pinch helps balance all of the flavors while also aiding in hydration.
- Tulsi Basil – lends a beautiful herbal flavor that complements the watermelon nicely. You can use regular sweet basil if you like or even mint in its place!
How to Make this Easy Watermelon Slush
You’ll start by cutting up your watermelon. I like to cut mine into roughly 1-inch cubes because they freeze and blend faster. You can obviously skip this step if you’ve purchased already cut watermelon! You’ll arrange your cut watermelon in an even layer on a small parchment lined baking sheet, making sure the pieces aren’t touching. Then, you place it in the freezer. Allow it to freeze fully (at least 3-4 hours) before proceeding with the recipe.

Once you’ve frozen your watermelon, the rest of the recipe goes by in a breeze! You’ll add your frozen watermelon, lime juice, coconut water, agave nectar, sea salt, and tulsi basil to a blender and blend until you have a slushy consistency. Serve and enjoy immediately! You’ll get 1 large slush or 2 smaller ones.

Tips for Recipe Success
- Make sure your watermelon is completely frozen! If it’s not, it will look more like a thick juice or smoothie than a slush once it’s blended.
- Plan on serving and enjoying this as soon as it’s made. It doesn’t stand up well if left to sit around for too long because it starts to melt!
- To make sure your slush stays nice and frosty, you can put your serving glass in the freezer along with the watermelon!
- Not all limes are equally juicy — look for one that is lighter green in color, has smooth skin, and has a slight give when you press it.

More Hydrating Summer Beverages to Enjoy
If you want something you can make a big batch of and sip on throughout the week, try this hibiscus plum iced tea. If you prefer something with bubbles, go for this cucumber basil soda. If you want to keep things simple, try my cold brew herbal tea method that can be used with any herbs you like.

Watermelon Lime Slush with Tulsi Basil
- Total Time: 5 minutes
- Yield: 2 1x
- Diet: Gluten-Free, Vegan
Description
This watermelon lime slush with tulsi basil is super refreshing and ready in just 5 minutes! Frozen cubes of sweet summer watermelon are blended with lime juice, coconut water, agave nectar, tulsi basil, and a pinch of salt for a delicious and easy summer drink that’s perfect for all ages.
Ingredients
- 2 cups cubed watermelon, frozen
- 1 medium lime, juiced
- 2–3 teaspoons agave, optional
- 3/4 cup coconut water
- 1 small pinch sea salt
- 1 small handful of ulsi basil leaves, or mint leaves
Instructions
Add all of the ingredients to a blender, using agave to taste.
Blend until you have a slushy consistency. Serve immediately and enjoy!
Makes 1 large or 2 smaller servings.
Notes
- To prepare your watermelon for freezing, cut it into roughly 1-inch cubes and place it on a small baking sheet that has been lined with parchment paper. Make sure the pieces aren’t touching. Freeze completely before using in the recipe.
- If you don’t have access to tulsi basil, you can use an equal amount of regular basil or mint in its place for equally delicious results!
- Prep Time: 5 minutes
- Category: Beverage
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