Watermelon Rum Slush

July 2, 2017
Don't waste any of that sweet, juicy watermelon!  Grab some watermelon juice and rum to whip up this fun, tasty, and refreshing Watermelon Rum Slush ~ it may just be the perfect summer sipper.  Thank you to the National Watermelon Promotion Board for sponsoring its creation and this post.

It's summertime.  And you know one thing summer means to me?  Watermelon time!  Watermelon is one of my absolute favorite things to eat ... and I swear, I could enjoy it every day.

Now, I know I don't need to dwell on the nutritional benefits of watermelon.  We all know it's not only tasty, but also low in calories, great for staying hydrated in summer's heat, sodium and fat free, and contains lots of great nutrients like vitamins A and C, right?

But did you know that 100% of the watermelon is edible and usable?

When many of us think of enjoying watermelon, we think solely of enjoying the flesh.  Whether it be in the summer-staple fresh-cut wedge, or in other creative watermelon recipes like salads or salsas, eating the flesh is certainly a favorite way to enjoy watermelon's juicy deliciousness.

But how about that rind and juice?

Oh, there are many wonderful ways to enjoy each of these, too.  And to celebrate July as National Watermelon Month, the National Watermelon Promotion Board is challenging watermelon lovers to use the whole  watermelon ~ flesh, juice AND rind!

Have you got a great watermelon recipe ~ whether it be for the watermelon flesh, juice, or rind?  Submit it to the National Watermelon Promotion Board's "Use the Whole Watermelon" recipe contest!

In celebration of National Watermelon Month, the National Watermelon Promotion board will select one winning recipe to receive $500!  Multiple recipe entries are permitted ~ visit http://www.watermelon.org/recipecontest to submit your recipe ideas and view the full terms and conditions.

Need inspiration to get into the use-the-whole-watermelon spirit?  The Watermelon Board website is loaded with tons of great ideas for us ~ whether it be watermelon recipes using the flesh, watermelon juice recipes, OR watermelon rind recipes.

Frozen Watermelon Slush with Rum ~ a perfect summer sipper.

When I was challenged by the National Watermelon Promotion Board to create a recipe featuring one of the components of the whole watermelon, my mind immediately went to featuring watermelon juice.  There are so many wonderful ways to enjoy watermelon juice in refreshing summer drinks like lemonades, infused waters, margaritas, and even an easy watermelon mojito.  

But my absolute favorite way to enjoy watermelon juice is as a frozen slush.  So I turned to a watermelon-Moscato slush I shared a few years back as inspiration for this tasty and refreshing Watermelon Rum Slush I'm sharing with you today.

 And believe me, making this slush truly couldn't be any easier.  All you need to do is mix up watermelon juice with rum and a few simple ingredients, and freeze it.  So easy, right?

Now when I cut up a whole watermelon, I take any juice that collects in the bottom of my watermelon-chunks' bowl and that spills out onto my cutting board and save it ~ you can collect up to about 2 cups of juice this way.  We then either drink it as-is as watermelon juice, or use it in cocktails or to add a jolt of watermelon flavor to a glass of lemonade.

If you're making a batch of this slush though, that collected juice is a great start ... but it won't be enough.  Fortunately, preparing watermelon juice is super easy.  {And an especially fabulous way to use an overripe watermelon, if you happen to end up with one, instead of tossing it out.}

To prepare watermelon juice {and hence, the base of this Watermelon Rum Slush}, simply toss cubed watermelon into a food processor or blender and give them a whirl ...

How to Make Watermelon Juice Image

Then pour the watermelon puree through a strainer to remove the pulp, reserving the juice.  

For the slush, mix the juice with rum, some sugar, and a bit of fresh lemon juice and freeze.

Frozen Watermelon Slush with Rum

Once the mixture is frozen, the Watermelon Rum Slush is ready to be scooped out into a glass, topped off with a bit of lemon-lime soda, and enjoyed.  

And oh, what tasty refreshing watermelon enjoyment it is!  In my opinion, it's the most perfect way to enjoy watermelon juice.  Just pass a straw!

Don't waste any of that sweet, juicy watermelon!  Grab some watermelon juice and rum to whip up this fun, tasty, and refreshing Watermelon Rum Slush ~ it may just be the perfect summer sipper.
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Watermelon-Rum Slush
(Printable recipe)
  • 6 c. watermelon cubes, seeds removed*
  • 1/4 c. granulated sugar
  • 1 T. freshly squeezed lemon juice
  • 1 c. white rum
  • 7-Up or Sprite for serving
  1. Place watermelon cubes in a food processor or blender. Blend until smooth. Place a strainer over a large bowl or 9x13-inch glass baking dish. Pour processed watermelon through the strainer to remove the pulp, reserving the strained juice.
  2. Stir granulated sugar and lemon juice into the watermelon juice until the sugar is fully dissolved. Stir in rum.
  3. Place the bowl or baking dish in the freezer and freeze the mixture for 2 to 3 hours, stirring with a fork every 45 minutes or so to break up ice crystals.
  4. When ready to serve, spoon watermelon-rum slush into a glass, filling the glass about 3/4 full. Pour in a little 7-Up or Sprite and stir. Garnish as desired.
*  Six cups watermelon cubes, pureed and strained, yields about 4 cups watermelon juice.  You can use watermelon juice released and collected when cutting up a whole watermelon instead, for all or part of the pureed juice.


This is a sponsored post written by me on behalf of  the National Watermelon Promotion Board.  While I received compensation for writing this post, the thoughts and opinions expressed are entirely my own.

Please enjoy these other delicious watermelon juice drinks from The Kitchen is My Playground ...

{Kid-Friendly} Watermelon Slush

Affiliate links are included in this post. I receive a small amount of compensation for anything purchased from these links, at no additional cost to you. Thank you for supporting The Kitchen is My Playground when you shop at Amazon.com

This post is linked with Weekend Potluck.


  1. You may be my new favorite blog! I love all these recipes. So glad I found you. Thanks for linking up and sharing.

    1. Thank you so much for your kind words, Jenny!

  2. What a lovely summer treat, Tracey! Watermelon is so refreshing, and this is just such a great thing to make with it. Pinned and sharing! Thank you so much for being a part of Hearth and Soul.


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