Coconut Cupcakes with Key Lime Buttercream

Coconut Cupcakes with Key Lime Buttercream Frosting are a delectable treat with fresh key lime flavor! A coconut cake is filled with coconut filling and topped with fresh key lime buttercream!

Coconut Cupcakes are stuffed with coconut filling and topped with key lime buttercream frosting! These cupcakes are too good to resist!

It’s only Wednesday but I am already ready for the weekend. With no other plans for the coming weekend, I am going to be testing and making some exciting new recipes that I can’t wait to share with you. In the meantime, I’m sharing these irresistible Coconut Cupcakes with Key Lime Buttercream Frosting. If you recognize them, it’s probably because you saw my post a few weeks ago on my friend Lindsay’s blog, Life Love and Sugar. Lindsay was in South Africa for a week spending time with Kudu, Zebra, Wildebeest and more. Head over and check out the beautiful pictures from her trip.

Coconut Cupcakes are stuffed with coconut filling and topped with key lime buttercream frosting! These cupcakes are too good to resist!

These cupcakes are made with the freshest ingredients. When possible, I pick the key limes straight from the lime trees in my backyard. For this recipe, I used key limes, but regular limes work well too. The filling I use for these cupcakes is the same filling I use for my popular Chocolate Cake with Coconut Filling and Marshmallow Frosting. I absolutely love the filling and actually use it for an assortment of desserts. Have you ever tried fruit dipped in the coconut filling? It is addictive so I try not to make it that often.

Coconut cake is filled with coconut filling and topped with key lime buttercream to create a cupcake that is great for birthdays, summer picnics and more. I love to top the cupcakes with toasted coconut and slices of key limes.

Coconut Cupcakes are stuffed with coconut filling and topped with key lime buttercream frosting! These cupcakes are too good to resist! Coconut Cupcakes are stuffed with coconut filling and topped with key lime buttercream frosting! These cupcakes are too good to resist! Coconut Cupcakes are stuffed with coconut filling and topped with key lime buttercream frosting! These cupcakes are too good to resist!

I shared these cupcakes with friends who said that they were the best cupcake they have ever eaten. If you are a coconut or lime lover, and even if you are not, then you will love them. Go ahead, indulge a little and make a batch of these Coconut Cupcakes with Key Lime Buttercream. Your friends and family will love you!

Yields about one dozen cupcakes

Key Lime Coconut Cupcakes
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    For the cupcakes:
  • 1 3/4 cups all-purpose flour
  • 2 teaspoons baking powder
  • 1/4 teaspoon kosher salt
  • 1 cup granulated sugar
  • 1/2 cup unsalted butter, at room temperature
  • 3 eggs, separated
  • 1 teaspoon vanilla extract
  • 1/2 cup full-fat coconut milk
  • 1 1/4 cups sweetened shredded coconut
  • For the filling:
  • 3 tablespoons coconut cream
  • 2 ounces cream cheese, softened
  • 1 cup confectioners' sugar, sifted
  • 1/2 cup shredded coconut
  • For the frosting:
  • 1/2 cup (1 stick) butter, softened
  • 3 cups confectioners' sugar, divided
  • 2 tablespoons lime zest*
  • 1 tablespoon freshly squeezed lime juice*
  • 1/4 cup coconut flakes, toasted


  1. To make the cupcakes, preheat an oven to 350 degrees F. Line 12 muffin cups with paper liners. In a large bowl, sift together flour, baking powder, and salt. In the bowl of a stand mixer fitted with the paddle attachment, beat together the sugar and butter until light and fluffy, about 2 to 3 minutes. Add egg yolks, one at a time, mixing until well blended. Add vanilla and beat until combined. Slowly add the flour mixture in 3 additions, alternating with the coconut milk, beginning and ending with the flour mixture. Scrape down the sides of the bowl as needed and beat until combined.
  2. In another clean bowl, beat the egg whites until soft peaks form. (You can use a stand mixer or hand mixer.) Stir one-fourth of the egg whites into the cake batter to lighten, then fold in the remaining egg whites until combined. (Be careful not to over mix. You want some egg whites to still be visible in the batter.) Gently fold in the shredded coconut. Divide the batter evenly among the lined muffin cups, filling them about 3/4 full. Bake until a toothpick inserted into the center of the cupcake comes out clean, about 20 minutes. Let cool for 5 minutes in pan, then transfer to wire rack to cool completely.
  3. To make the filling, in the bowl of a stand mixer fitted with the whisk attachment add the coconut cream, cream cheese and sugar. Whip on medium speed for one to two minutes. Slowly fold in the shredded coconut.
  4. To make the frosting, in the bowl of a stand mixer fitted with the paddle attachment, beat butter until light and fluffy, about 1 minute. Slowly add 2 1/2 cups confectioners' sugar and beat until fluffy, about 2 to 3 minutes. Add lime zest, lime juice and remaining sugar. Beat for an additional one to two minutes.
  5. To assemble the cupcakes, remove a small amount of the center part of the cupcake using a cupcake corer or pairing knife. Divide the coconut filling evenly among the cupcakes, filling the hole in the middle of the cupcake. Pipe frosting onto each cupcake and sprinkle with toasted coconut. Garnish with sliced key limes, as desired.


*You can use key limes or regular limes.


Source: Spoonful of Flavor

More lime and coconut recipes:

Key Lime Pie Macaroons
Key Lime Pie Macaroons (Coco-roons) are gluten free, dairy free, vegan and raw!

No Bake Mini Key Lime Pies
No Bake Mini Key Lime Pies - a layer of crust is filled with key lime filling and topped with whipped coconut cream! These little bites pies are gluten free, vegan, paleo and healthy!


  1. Drew

    Love this recipe. Coconut and key lime are two of my favorite dessert flavors, so this sounds right up my alley. Great photography as well!

  2. Johlene@FlavoursandFrosting

    Beautiful looking cupcakes! I love that you topped them with key lime buttercream! Coconut and Lime were made for eachother 🙂

  3. Danae @ Recipe Runner

    I need to make a trip to your house so I can come pick some key limes off your tree! I’m so jealous. These cupcakes look absolutely perfect, I’m such a coconut and key lime fan!

  4. Debbie

    These look delicious!

  5. Julie | Small Green Kitchen

    These are some of the most beautiful cupcakes I’ve ever seen, Ashley! I love the use of key limes in the recipe and of course, coconut is always a great option. 🙂

  6. Ashley

    These cupcakes are just so pretty Ashley! And the coconut lime flavor sounds out of this world! And oh gosh, I am so ready for the weekend too!

  7. Cheyanne @ No Spoon Necessary

    Oh my goodness- I had to literally force myself to stop staring at your gorgeous photography of these delicious beauties so I could scroll down and comment! I LOVE key lime anything (so jealous you have a tree in your backyard!!) and toasted coconut paired with it is absolutely divine!! And that creamy filling and buttercream icing? Fo-get-about-it! These are SO happening in my kitchen! STAT! Thanks for sharing the yum! ♡Cheers!!

  8. Medha @ Whisk & Shout

    I love your photos! The cake stand is super cute and so is the background of this presentation 🙂 Loving the key lime buttercream with the coconut cakes, too! So tropical 🙂

  9. Cyndi - My Kitchen Craze

    These cupcakes not only look gorgeous but so moist. And filled with marshmallow cream…oh yum! Wish I could have some.

  10. Jessica @ Sweetest Menu

    Ashley! These cupcakes are AMAZING! I just love the creamy coconut filling. And your photos, my goodness, they are incredible! You make me just want to jump in the kitchen and make cupcakes straight away!!!

  11. Zainab

    You KNOW I love these!!! I need to try that filling right away.

  12. Medeja

    These are real beauties! Coconut and lime is definitely lovely combination!

  13. Kelly

    These cupcakes are so gorgeous, Ashley! I always love that you can just grab the key limes from your backyard 🙂 The coconut key lime combo sound perfect and I am just swooning over that delicious coconut filling!

  14. Sarah @Whole and Heavenly Oven

    Oh my gosh, I want your lime tree! How fun is that?? These cupcakes are seriously calling my name. Coconut and lime is totally a winner combo and I love that buttercream!

  15. Steph @ Steph in Thyme

    Gorgeous!! Is the coconut milk you use in the cupcakes the coconut milk from the carton, or full fat kind from the can?

    • Ashley

      Good question, Steph! I always use full-fat coconut milk from a can.

  16. Leah @ Grain Changer

    You have a lime tree in your yard?!?! I am soooo, so jealous! Ashley, these cupcakes look absolutely incredible. Coconut + key lime together is genuis!! Loooove the idea for using the coconut cream as a fruit dip, too. Sounds dangerously delectable 🙂

  17. Renee @ Tortillas and Honey

    Everything about these cupcakes look amazing! Coconut and key limes… can I get a shot of rum with this too? 😉

  18. Sam @ PancakeWarriors

    Yes please send me some of these coconut cupcakes, I’m very patient 🙂 Love this combo of flavors – awesome photos by the way!

  19. Erin @ Miss Scrambled Egg

    If it wasn’t 10 pm, I totally would be downstairs in my kitchen making these cupcakes. I won’t be able to get this recipe out of my head until I taste these coconut lime cupcakes. These are fantastic.

  20. Denise | Sweet Peas & Saffron

    I’m insanely jealous that you have key limes growing on a tree in your yard! Ha ha! These cupcakes are SO up my alley, key lime and coconut are just a match made in heaven 🙂

  21. Thalia @ butter and brioche

    How perfect for summer! I don’t think you can ever go wrong with the tropical and zesty combination of coconut and lime so I can imagine these tasted just as amazing as they look.

  22. mira

    These cupcakes look gorgeous Ashley! I do need to try them! So glad you have a key lime tree in your backyard! Pinning!

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  24. Ioanna

    Looks delicious!

  25. Jerri

    Wow! These cupcakes look incredible! I’d love for you to link up with us for Friday Favorites!

  26. Karly

    Totally gorgeous! Thanks for linking up with What’s Cookin’ Wednesday!

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  31. Akaleistar

    Those cupcakes are so pretty, and the flavor sounds amazing!

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  33. Yolanda

    Hi there! these cupcakes look absolutely divine.. one question though, what is coconut cream>

  34. Yolanda

    Hi! these coconut cupcakes look absoultely divine . One question though….what is coconut cream and where do I find it at the grocery store.

    • Ashley

      Hi, Yolanda! You can find coconut cream next to the coconut milk in the grocery store. Thai Kitchen, Native Forest and Trader Joe’s are a few brands. If you can’t find coconut cream, you can purchase coconut milk, chill in fridge, pour out liquid and then scoop out remaining coconut cream.

      • Yolanda

        Thank you for your quick reply Ashley. Can’t wait to try these.

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  37. Jelli

    These look great, Ashley! What a killer flavor combo.

  38. Amanda

    These look so yummy! I’m making these for my sister’s birthday this weekend, but I was wondering if I want two dozen, should I double all the ingredients? 6 eggs sounds like a lot for just 24 cupcakes.

    • Ashley

      Hi, Amanda! Yes, you should be able to double the ingredients for this recipe without any issues. Enjoy!

  39. plasterers bristol

    Oh boy these sound really good. look forward to giving these ago on the weekend. Thanks for sharing.


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