Total Time
Prep 5 mins
Cook 0 mins

I've been on a watermelon kick lately and I've tried it lots of different ways. This is one of my favorites.

Ingredients Nutrition


  1. In a blender put the seltzer.
  2. Squeeze the juice from half a lemon on top of the seltzer. Add the splenda and then the watermelon.
  3. Blend until slushy.
  4. Depending on your blender, you may need a tad more seltzer.
Most Helpful

3 5

completely forgot to add my review when I tried this last OCT...made this one twice, once as written...making it as written, everyone was unimpressed...the 2nd time I adapted the recipe & went the orange route instead of lemon and arrived at a result EVERYONE liked...the flavors just melded better...the recipe is SIMPLE enough & I suppose some might find it a DECENT enough concoction, but we found it LESS than spectacular and we wont be adding it into our ARSENAL come summertime...but thanks for sharing!

5 5

Have now made this twice with variations and enjoyed both immensely. The first time I did not pay attention to the ingredients list carefully and made the slushy with diet 7Up. Because the soda included sweetner, the Splenda was omitted. The second time I made it with seltzer as directed and used just 1 tablespoon of sweetner as that was sufficient for my tastes. Both drinks were light and refreshing, but i did like the seltzer version a bit more because the watermelon was a bit sharper. Either way, it was a crisp taste of summer in a glass. Thanks.

5 5

WOW! This was really different and tasty! It took forever for my cuisineart blender to handle it though! LOL My teen son didn't care for it. I guess it was too "natural" tasting than sonic's! But I absolutely will be making it for myself again! Thanks for the post!