Watermelon Cupcakes

Watermelon Cupcakes: nobody will know these started from a boxed mix! Super cute and fun!
**photos edited January 2015**
We have been having a fantastic summer so far. I am so lucky to live near King’s Island, and have season passes. Between riding roller coasters and spending time at the water park, there is little time for much else in my day.
I’m exhausted.
However, another favorite thing we enjoy in summer is watermelon. We eat a whole melon every week in the summer. Actually, I cut a melon in the morning and it’s gone by bedtime, but I don’t buy another one for a week, or at least until my next shopping trip.

I really wanted to only use fresh watermelon juice in the frosting, but the flavor didn’t “burst” enough for me. So I added in 1/2tsp of watermelon-cherry Koolaid mix (the dry stuff). If you have access to watermelon flavoring (I was too lazy to go to the store to buy it), that would be a great substitute as well.

However, I must say, these tasted perfect. The lime flavored cupcake was so slight, but just enough to give a good base flavor. The melted white chocolate hardened and gives a little texture to your bite. I loved these.
Want more cupcake inspiration? Check these favorites out!
Chocolate Malt Cupcakes
S’mores Cupcakes
Cherry Almond Cupcakes
Kiddie Cocktail Cupcakes
Check out my Cakes and Cupcakes Board on Pinterest 

Watermelon Cupcakes

Yield: 24


For the cupcakes:

  • 1 box (18.25oz) white cake mix
  • 1 box (3oz) lime Jello (not sugar free)
  • 3 egg whites
  • 1/3 cup canola oil
  • 1 1/4 cup water

For the Topping:

  • 8oz white chocolate, melted
  • 1/2 cup butter, softened
  • 4 cup powdered sugar
  • 1/2 tsp Koolaid powdered mix (watermelon flavor)
  • 3-4 Tbsp milk
  • 3/4 cup mini chocolate chips


  1. For the cake, add cake mix, jello, egg whites, oil and water in a mixing bowl. Beat 2 minutes until blended. Fill cupcake liners 2/3 full and bake in a 350 degree oven for 15-18 minutes. Do not overbake. Allow to cool completely.
  2. When cooled, spread melted white chocolate over top of each cupcake. While that sets, begin your frosting.
  3. In mixer, beat butter with powdered sugar, Koolaid mix and milk. Beat for about 3-5 minutes until fluffy and smooth. Using a decorator bag and tip (I used 6S), pipe frosting on each cupcake and immediately sprinkle with chocolate chips. ENJOY!
Watermelon Cupcakes: nobody will know these started from a boxed mix! Super cute and fun!
Adorable Watermelon Cupcakes

56 Responses to “Watermelon Cupcakes”

  1. posted Jun 24, 2012 at 7:55 pm

    Those are so very cute!!! I have a small confession…I don’t really like watermelon in any form! But for you I would try the cupcake…maybe my taste buds have changed? With all the chocolate and lime, I bet I would like it!! Funny thing is that I love the smell of the yankee candle watermelon scent:-)

    • posted Jun 25, 2012 at 2:03 am

      Oooh, I bet a candle scented like watermelon is nice! Although I prefer to eat my watermelon :)

  2. posted Jun 24, 2012 at 8:01 pm

    These are so so cute! Perfect summer cupcakes :)

    • posted Jun 25, 2012 at 2:02 am

      Thanks Holly! They are the perfect summer cupcake!

  3. posted Jun 24, 2012 at 8:12 pm

    These look fantastic! You are so lucky to be enjoying summer. It’s gross and rainy here =o(

    • posted Jun 25, 2012 at 2:03 am

      I hope it gets better for you soon!

  4. posted Jun 24, 2012 at 8:16 pm

    How adorable are these? I bet these would get my kid to eat watermelon, ha. Such a great idea Aimee!

    • posted Jun 25, 2012 at 2:04 am

      Now if only I can hide meat in a cupcake, maybe my picky eater would eat it! Enjoy Dorothy

    • posted Jul 13, 2012 at 3:09 am

      Cupcake Project has quite a few wacky meat-including cupcakes, even one with spam! {which is supposedly good}
      though actually, I’m that picky vegetarian, too… :)

  5. posted Jun 24, 2012 at 8:22 pm

    Too cute and great idea with the watermelon-cherry Koolaid mix – now THAT will make the flavor pop!

    • posted Jun 25, 2012 at 2:05 am

      Thanks Averie!

  6. posted Jun 24, 2012 at 9:31 pm

    So fun! My girls will love these cupcakes! Thank you for sharing, Aimee!

    • posted Jun 25, 2012 at 2:04 am

      Thanks for stopping by! My kids devoured these (and I did too)!

  7. posted Jun 25, 2012 at 8:40 am

    These look absolutely superb and i bet they are very refreshing. Going to give these a try at the weekend.

  8. posted Jun 25, 2012 at 10:59 am

    I LOVE these! These are adorable. We love watermelon, it’s just what you eat in the summer, these cupcakes are perfect. I love Kings Island! Lots of memories there. I actually live “just down the road” in Batavia. Hope to get up to the waterpark this summer!

  9. posted Jun 25, 2012 at 2:31 pm

    These are so pretty! What a wonderful treat to make for my next picnic. Thanks so much for sharing at Mix it up Monday :)

  10. posted Jun 25, 2012 at 3:46 pm

    These look darling, I might have to try them for the fourth of July!


  11. posted Jun 25, 2012 at 6:22 pm

    these are just too cute!! i saw them and it actually brought a smile to my face :)

    • posted Jun 25, 2012 at 8:39 pm

      Glad to make you smile Julie!

  12. posted Jun 25, 2012 at 6:56 pm

    I love the chocolate chips standing in for watermelon seeds! SO creative.

    • posted Jun 25, 2012 at 8:40 pm

      Can’t be responsible for that one, I’ve seen it before. Most times it’s been inside a strawberry cake decorated with green frosting. I just went the other way around!

  13. posted Jun 26, 2012 at 1:19 pm

    LOVE how you used koolaid to flavor (and add color) to the frosting. That opens up so many possibilities! Thanks for the inspiration. :)

  14. posted Jun 26, 2012 at 4:28 pm

    These look beautiful and I really like the flavors – perfect to summer

  15. posted Jun 26, 2012 at 6:30 pm

    Super cute cupcakes!

  16. posted Jun 26, 2012 at 7:46 pm

    These look delicious! I will for sure be making these this summer! Thanks for recipe!

  17. posted Jun 27, 2012 at 3:20 am

    ok – these are too cute! I will Definitely! be making these!!

  18. posted Jun 27, 2012 at 12:46 pm

    Adorable cupcakes!

  19. posted Jun 27, 2012 at 2:53 pm

    These are so cute and delicious looking! If I ever throw a watermelon themed party, I would make these. Hope you have a great week! Come visit me and enter my giveaway going on.

  20. posted Jun 27, 2012 at 7:44 pm

    So cute! Perfect for summer! I would love for you to come link up with me! http://www.firsthomelovelife.com/2012/06/features-and-whats-cooking-wednesday-6.html

  21. posted Jun 29, 2012 at 11:11 am

    so pretty! watermelon definitely makes everything happy and summery :)

  22. posted Jun 29, 2012 at 12:52 pm

    Amazing presentation! I love the icing!

  23. posted Jun 29, 2012 at 11:52 pm

    Super cute!

  24. posted Jun 30, 2012 at 12:02 pm

    So cute! Sounds like a great taste combo!

  25. posted Jul 2, 2012 at 2:31 pm

    these are So cute!!! you are being featured at this weeks Tasty Tuesday party. Stop by and grab a featured button and join in this weeks party tonight. http://www.nap-timecreations.com/

  26. posted Jul 2, 2012 at 5:27 pm

    How fun for summer! We’d love for you to share these at our party!! http://housewivesofriverton.blogspot.com/2012/06/recipe-round-up-23.html

  27. Liz
    posted Jul 7, 2012 at 5:47 am

    GREAT idea!

  28. posted Jul 7, 2012 at 1:45 pm

    These would be perfect for a backyard barbeque! They looked so yummy.
    Just so you know, I featured you on today’s Show Off Saturday.

  29. Anonymous
    posted Jul 10, 2012 at 6:53 pm

    My friends and family loved these! Thank you for a awesome recipe. I had no idea I could add jello into a cake

    • posted Jul 14, 2012 at 11:06 am

      So glad you enjoyed them!!

  30. posted Jul 13, 2012 at 3:10 am

    I love this idea and plan to make them soon… while sporting watermelon nails (thanks pinterest). I’ll let you know if I do a post with that! :)

    • posted Jul 14, 2012 at 11:07 am

      I’ve seen those watermelon nails. Send me a link if you do it!!

  31. posted Jul 13, 2012 at 3:59 pm

    Amiee, I just love the look of these little cuties!
    cant wait to make them (or have my daughter make them!)

    • posted Jul 14, 2012 at 11:07 am

      Lark, thanks for stopping by, hope you and your daughter enjoy them!

  32. posted Sep 7, 2012 at 8:55 am

    mmmmm, very interesting Idea
    that proves creativity has no limit :)

  33. Naomi
    posted May 14, 2013 at 10:56 pm

    why do you use only the egg whites?

  34. Naomi
    posted May 15, 2013 at 10:36 am

    why do you only use the egg whites?

    • posted May 15, 2013 at 1:03 pm

      By leaving the egg yolks out, the color of the cupcakes is much more vibrant!

      • Naomi
        posted May 15, 2013 at 11:23 pm

        Thank You!

  35. Naomi
    posted May 15, 2013 at 11:27 pm

    sorry for all these questions but how should I melt the chocolate?

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  37. posted Jan 9, 2015 at 1:49 pm

    These are so cute!!!

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  39. Patricia
    posted Feb 5, 2015 at 3:46 pm

    Curious….why can’t you use the sugar free lime jello? Could you use lime juice instead as well and maybe a drop of green food color? I have to watch the sugar in foods.

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  42. posted May 6, 2015 at 4:15 pm

    these are utterly adorable!

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