Coconut Cupcakes with Key Lime Buttercream Frosting are a delightful treat that perfectly balance the tropical flavor of coconut with the zesty freshness of key lime. These Key Lime Coconut Cupcakes are suitable for various occasions, from birthday parties to casual gatherings. Their unique combination of flavors and textures makes them stand out as a favorite dessert among both adults and children alike.
Why You’ll Love This Recipe
- Easy to Make: With straightforward steps, even novice bakers can whip these up without stress.
- Bursting with Flavor: The blend of coconut and key lime creates a refreshing taste that brightens any occasion.
- Versatile Occasion: Perfect for summer picnics, birthdays, or simply a sweet treat at home.
- Beautiful Presentation: Topped with vibrant key lime buttercream, these cupcakes are a feast for the eyes.
- Delightfully Moist: Thanks to the coconut milk and shredded coconut, each bite is soft and rich.
Tools and Preparation
To create these delicious cupcakes, you’ll need a few essential tools. Gathering your equipment beforehand will make the baking process smoother and more enjoyable.
Essential Tools and Equipment
- Stand mixer or hand mixer
- Mixing bowls
- Measuring cups and spoons
- Rubber spatula
- Muffin tin
- Cupcake liners
Importance of Each Tool
- Stand mixer or hand mixer: Ensures that ingredients are well blended, leading to a light and fluffy cupcake texture.
- Muffin tin: Provides the perfect shape for your cupcakes, helping them rise evenly during baking.
Ingredients
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 Key Lime Buttercream Frosting
- 3 tablespoons coconut cream
- 2 ounces cream cheese (softened)
- 1 cup confectioners’ sugar (sifted)
- 1/2 cup shredded coconut
For Garnish
- 2 tablespoons lime zest
- 1 tablespoon freshly squeezed lime juice
- 1/4 cup coconut flakes (toasted)

How to Make Key Lime Coconut Cupcakes
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). Line a muffin tin with cupcake liners to prepare for baking.
Step 2: Combine Dry Ingredients
In a mixing bowl, whisk together:
* 1 3/4 cups all-purpose flour
* 2 teaspoons baking powder
* 1/4 teaspoon kosher salt
Set aside.
Step 3: Cream Butter and Sugar
In another large bowl, use a stand mixer or hand mixer to beat:
* 1/2 cup unsalted butter (at room temperature)
* 1 cup granulated sugar
Mix until light and fluffy.
Step 4: Add Eggs and Vanilla
Add in:
* 3 egg yolks
* 1 teaspoon vanilla extract
Beat until well combined. Save the egg whites for later!
Step 5: Mix in Coconut Milk
Pour in:
* 1/2 cup full-fat coconut milk
Mix until smooth. Gradually add in the dry ingredients you set aside earlier.
Step 6: Fold in Shredded Coconut
Gently fold in:
* 1 1/4 cups sweetened shredded coconut
This adds texture and flavor to your cupcakes!
Step 7: Beat Egg Whites
In another bowl, whip the reserved egg whites until stiff peaks form. Gently fold them into the batter for extra fluffiness.
Step 8: Bake
Spoon the batter into the prepared muffin tin, filling each liner about two-thirds full. Bake for about 20 minutes or until a toothpick inserted into the center comes out clean.
Step 9: Prepare Key Lime Buttercream Frosting
While cupcakes cool, beat together:
* 3 tablespoons coconut cream
* 2 ounces softened cream cheese
Gradually add:
* 1 cup sifted confectioners’ sugar
Mix until smooth. You can adjust sweetness by adding more sugar if needed.
Step 10: Frost Your Cupcakes
Once cooled, frost your cupcakes generously with key lime buttercream. Sprinkle with toasted coconut flakes for garnish.
Enjoy your homemade Key Lime Coconut Cupcakes!
How to Serve Key Lime Coconut Cupcakes
Serving Key Lime Coconut Cupcakes can elevate any gathering. Their vibrant flavors and delightful presentation make them perfect for various occasions. Here are some creative serving suggestions to impress your guests.
Individual Cupcake Boxes
- Present each cupcake in a small, clear box tied with a ribbon. This adds a personal touch for parties or gifts.
Tropical Fruit Platter
- Serve these cupcakes alongside a platter of tropical fruits like pineapple, mango, and kiwi. The fresh fruits complement the key lime flavor beautifully.
Coconut Whipped Cream Topping
- Add a dollop of coconut whipped cream on top of each cupcake for an extra creamy texture that enhances the coconut flavor.
Lime Zest Garnish
- Sprinkle some additional lime zest on top of the frosting before serving. This adds brightness and a pop of color to your cupcakes.
Toasted Coconut Flakes
- Top the cupcakes with toasted coconut flakes for added crunch and an appealing visual contrast against the frosting.
Mini Cupcake Version
- Bake mini versions of these cupcakes for bite-sized treats. They are great for events where guests can enjoy a variety of desserts.
How to Perfect Key Lime Coconut Cupcakes
Perfecting your Key Lime Coconut Cupcakes involves attention to detail. Here are some tips to ensure they turn out delicious every time.
Use room temperature ingredients: Ensure your butter, eggs, and cream cheese are at room temperature for better mixing and texture.
Sift dry ingredients: Sifting flour and sugar helps eliminate lumps and ensures even distribution in the batter.
Don’t overmix: Mix just until combined when adding wet ingredients to dry ones. Overmixing can lead to dense cupcakes.
Check oven temperature: Always use an oven thermometer to confirm that your oven is baking at the right temperature for optimal results.
Cool completely before frosting: Allow your cupcakes to cool entirely before adding frosting. This prevents melting and ensures neat decoration.
Experiment with flavors: Feel free to adjust the key lime flavor by varying the amount of lime juice or zest according to your taste preference.

Best Side Dishes for Key Lime Coconut Cupcakes
Pairing side dishes with Key Lime Coconut Cupcakes enhances their tropical theme. Here are some delightful options that complement the sweetness:
Grilled Pineapple Skewers
Sweet grilled pineapple chunks add a smoky flavor that pairs well with the tartness of the cupcakes.Coconut Rice
Creamy coconut rice provides a subtle backdrop, allowing the flavors of the cupcakes to shine through without overpowering them.Mango Salsa
A fresh mango salsa brings a zesty contrast that brightens up your dessert table beautifully.Tropical Salad
A salad made with mixed greens, avocado, and citrus segments balances sweetness with freshness, making it an ideal match.Lime Sorbet
Serve refreshing lime sorbet on the side as a cool palate cleanser between bites of sweet cupcakes.Chilled Fruit Soup
A light fruit soup made from blended tropical fruits adds elegance and pairs well with the rich frosting of the cupcakes.
Common Mistakes to Avoid
Making Key Lime Coconut Cupcakes can be a delight, but there are some common mistakes to watch for. Here are a few tips to ensure your cupcakes turn out perfectly.
- Overmixing the batter: This can lead to dense cupcakes. Mix just until the ingredients are combined for a light texture.
- Using cold ingredients: Cold butter or eggs can affect the batter consistency. Ensure all ingredients are at room temperature for even mixing.
- Not measuring accurately: Baking is a science, and inaccurate measurements can ruin your cupcakes. Use a kitchen scale for precise measurements.
- Skipping the lime zest: Lime zest adds essential flavor. Don’t skip this step; it enhances the overall taste of your cupcakes.
- Ignoring baking time: Every oven is different. Check your cupcakes a few minutes before the timer goes off to avoid overbaking.
Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container: This helps keep them fresh.
- Enjoy within 3-5 days: For best flavor and texture, consume them within this time frame.
Freezing Key Lime Coconut Cupcakes
- Wrap individually: Wrap each cupcake tightly in plastic wrap before freezing.
- Store in a freezer-safe bag: This prevents freezer burn and keeps them fresh for up to 3 months.
Reheating Key Lime Coconut Cupcakes
- Oven: Preheat to 350°F (175°C). Place cupcakes on a baking sheet and warm for about 10-15 minutes.
- Microwave: Heat for about 10-15 seconds on low power. Keep an eye on them; you want them warm, not hot.
- Stovetop: Place in a covered skillet over low heat for about 5 minutes to warm through gently.

Frequently Asked Questions
Here are some frequently asked questions regarding Key Lime Coconut Cupcakes that may help you during the baking process.
Can I use lime juice instead of lime zest in Key Lime Coconut Cupcakes?
Lime juice provides flavor but lacks the aromatic oils found in zest. For best results, use both lime zest and juice.
How do I make these Key Lime Coconut Cupcakes gluten-free?
To make gluten-free cupcakes, substitute all-purpose flour with a 1:1 gluten-free flour blend. Be sure it contains xanthan gum for better structure.
What can I do if my frosting is too runny?
If your Key Lime Buttercream frosting is too runny, gradually add more confectioners’ sugar until you reach your desired consistency.
Can I replace coconut milk with another type of milk?
Yes, you can use almond milk or whole milk as alternatives, but they will alter the flavor slightly. Coconut milk gives that signature taste.
Final Thoughts
Key Lime Coconut Cupcakes combine refreshing lime with rich coconut flavors, making them an irresistible treat! These versatile cupcakes can be customized with various toppings or fillings to suit any occasion. Try this recipe today and enjoy a tropical escape right from your kitchen!

Key Lime Coconut Cupcakes
Indulge in the tropical delight of Key Lime Coconut Cupcakes, where zesty key lime meets rich coconut for a truly refreshing treat. Perfect for summer gatherings, birthdays, or just a sweet escape at home, these cupcakes are a hit with both kids and adults. Each bite is moist and flavorful, topped with a creamy key lime buttercream frosting and toasted coconut flakes that add an appealing crunch. Whether you’re hosting a party or enjoying a cozy afternoon snack, these cupcakes will undoubtedly brighten your day.
- Total Time: 40 minutes
- Yield: Approximately 12 servings 1x
Ingredients
- 1 3/4 cups all-purpose flour
- 2 teaspoons baking powder
- 1 cup granulated sugar
- 1/2 cup unsalted butter (room temperature)
- 3 eggs (separated)
- 1 teaspoon vanilla extract
- 1/2 cup full-fat coconut milk
- 1 1/4 cups sweetened shredded coconut
- For frosting: 3 tablespoons coconut cream
- 2 ounces softened cream cheese
- 1 cup confectioners' sugar
Instructions
- Preheat oven to 350°F (175°C) and line muffin tins with cupcake liners.
- Whisk together flour, baking powder, and salt in one bowl; set aside.
- In another bowl, beat butter and sugar until fluffy. Add egg yolks and vanilla; mix well.
- Stir in coconut milk and then gradually incorporate dry ingredients.
- Fold in shredded coconut gently.
- Whip egg whites until stiff peaks form; fold into batter carefully.
- Fill cupcake liners two-thirds full and bake for about 20 minutes or until a toothpick comes out clean.
- For frosting, beat together coconut cream and cream cheese; gradually add confectioners' sugar until smooth.
- Frost cooled cupcakes and garnish with toasted coconut flakes.
- Prep Time: 20 minutes
- Cook Time: 20 minutes
- Category: Dessert
- Method: Baking
- Cuisine: Tropical
Nutrition
- Serving Size: 1 serving
- Calories: 280
- Sugar: 22g
- Sodium: 150mg
- Fat: 12g
- Saturated Fat: 7g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 38g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 50mg
Keywords: Ensure all ingredients are at room temperature for the best texture. Sifting dry ingredients can enhance the lightness of the cupcakes. Experiment with adding more lime zest to intensify the flavor.