Coconut Cupcakes with Key Lime Buttercream Frosting are a delightful treat that combines the tropical flavors of coconut and the zesty punch of key lime. These Key Lime Coconut Cupcakes are perfect for any occasion, from birthday parties to casual gatherings. The refreshing taste and light texture make them a standout dessert that will impress your guests and satisfy your sweet tooth.
Why You’ll Love This Recipe
- Bursting with Flavor: These cupcakes feature a unique blend of coconut and key lime, creating a refreshing taste that’s hard to resist.
- Easy to Make: With simple ingredients and straightforward steps, even beginner bakers can whip these up quickly.
- Versatile Dessert: Perfect for summer barbecues, birthday celebrations, or just a sweet treat at home.
- Beautiful Presentation: Topped with vibrant key lime buttercream and toasted coconut flakes, these cupcakes look as good as they taste.
- Crowd-Pleaser: The combination of flavors appeals to both coconut lovers and citrus fans alike.
Tools and Preparation
Before you start baking, gather your essential tools to ensure a smooth process. Having everything ready will help you stay organized.
Essential Tools and Equipment
- Mixing bowls
- Electric mixer
- Measuring cups
- Measuring spoons
- Rubber spatula
- Cupcake pan
- Cupcake liners
Importance of Each Tool
- Electric mixer: Ensures that your buttercream frosting is light and fluffy without the arm workout!
- Cupcake pan: The right size is crucial for even baking and perfect cupcake shape.
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
- 1/2 cup unsalted butter (softened)
- 3 cups confectioners’ sugar (divided)
- 2 tablespoons lime zest
- 1 tablespoon freshly squeezed lime juice
For Garnish
- 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 cupcake pan with cupcake liners.
Step 2: Mix the Dry Ingredients
In a mixing bowl, combine:
* 1 3/4 cups all-purpose flour
* 2 teaspoons baking powder
* 1/4 teaspoon kosher salt
Whisk together until well blended.
Step 3: Cream Butter and Sugar
In another bowl, use an electric mixer to cream together:
* 1/2 cup unsalted butter
* 1 cup granulated sugar
Beat until light and fluffy.
Step 4: Add Eggs and Vanilla
Add in:
* 3 egg yolks
* 1 teaspoon vanilla extract
Mix until fully incorporated.
Step 5: Combine Wet Ingredients
Stir in:
* 1/2 cup full-fat coconut milk
* 3 tablespoons coconut cream
Mix well.
Step 6: Combine Dry and Wet Mixtures
Gradually add the dry mixture to the wet mixture. Blend until just combined. Fold in:
* 1 1/4 cups sweetened shredded coconut
Step 7: Whip Egg Whites
In a clean bowl, beat the reserved egg whites until stiff peaks form. Gently fold into the batter.
Step 8: Bake the Cupcakes
Spoon the batter into prepared cupcake liners, filling each about two-thirds full. Bake for about 20 minutes or until a toothpick inserted comes out clean. Let cool completely on a wire rack before frosting.
Step 9: Prepare Key Lime Buttercream Frosting
In a mixing bowl, beat together:
* 2 ounces cream cheese
* 1/2 cup softened butter
Add in:
* Zest of two limes
* Fresh lime juice
* Gradually mix in confectioners’ sugar until smooth.
Step 10: Frost the Cupcakes
Once cupcakes are cool, frost with key lime buttercream. Sprinkle with toasted coconut flakes for garnish. Enjoy your delicious Key Lime Coconut Cupcakes!
How to Serve Key Lime Coconut Cupcakes
Serving Key Lime Coconut Cupcakes can elevate any gathering or celebration. Their bright flavors and beautiful presentation make them a perfect addition to any dessert table.
With Fresh Berries
- Strawberries: Fresh strawberries complement the tartness of the key lime.
- Blueberries: Add a burst of sweetness and color to your serving plate.
- Raspberries: Their tangy flavor pairs wonderfully with the coconut and lime.
Topped with Whipped Cream
- Freshly whipped cream: A light dollop on each cupcake enhances its creamy texture.
- Coconut whipped cream: For extra coconut flavor, use whipped coconut cream as a topping.
On Decorative Platters
- Colorful platters: Arrange the cupcakes on vibrant platters for an eye-catching display.
- Garnished with lime slices: Place thin lime slices around the cupcakes for a zesty touch.
How to Perfect Key Lime Coconut Cupcakes
To ensure your Key Lime Coconut Cupcakes turn out perfectly every time, follow these tips. These simple suggestions will help enhance the flavor and texture of your cupcakes.
- Use fresh ingredients: Fresh key limes and quality coconut milk will elevate the taste.
- Don’t overmix the batter: Gently fold in the dry ingredients to keep the cupcakes light and fluffy.
- Measure accurately: Use proper measuring techniques for flour and sugar to avoid dense cupcakes.
- Cool completely before frosting: Allowing the cupcakes to cool ensures your frosting doesn’t melt off.
- Zest before juicing: Zest your limes first for easier juice extraction without losing any zest.

Best Side Dishes for Key Lime Coconut Cupcakes
Pairing side dishes with Key Lime Coconut Cupcakes can enhance your dessert experience. Here are some delicious options to consider.
- Fruit Salad: A refreshing mix of seasonal fruits balances the sweetness of the cupcakes.
- Coconut Sorbet: This creamy dessert echoes coconut flavors and offers a cool contrast.
- Pineapple Salsa: Sweet and tangy pineapple salsa adds a tropical twist that complements the cupcakes.
- Mango Chutney: The sweet-spicy notes of mango chutney pair beautifully with citrus desserts.
- Chocolate Mousse: Rich chocolate mousse creates a delightful contrast to the light, zesty cupcakes.
- Lime Jello Shots: Fun and festive, these shots add an extra layer of key lime flavor to your dessert table.
Common Mistakes to Avoid
Making Key Lime Coconut Cupcakes can be a joyful experience, but there are common mistakes to watch for.
-
Using Cold Ingredients: Always ensure your butter and eggs are at room temperature. Cold ingredients can lead to uneven mixing and a dense texture.
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Overmixing the Batter: Mix just until combined. Overmixing can make the cupcakes tough instead of light and fluffy.
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Skipping the Zest: The lime zest is essential for flavor. Don’t skip it; it adds a vibrant taste that enhances the key lime flavor profile.
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Not Measuring Flour Properly: Use the spoon-and-level method to measure flour. Too much flour can result in dry cupcakes, while too little can lead to collapse.
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Ignoring Cooling Time: Allow the cupcakes to cool completely before frosting. Frosting warm cupcakes can cause the frosting to melt and lose its shape.
Storage & Reheating Instructions
Refrigerator Storage
- Duration: Store in the refrigerator for up to 5 days.
- Containers: Use an airtight container to keep them fresh and prevent drying out.
Freezing Key Lime Coconut Cupcakes
- Duration: Freeze for up to 3 months.
- Containers: Place in a freezer-safe container or wrap individually in plastic wrap, then aluminum foil.
Reheating Key Lime Coconut Cupcakes
- Oven: Preheat to 350°F (175°C). Heat for about 10 minutes until warmed through.
- Microwave: Heat one cupcake at a time for about 15-20 seconds on high.
- Stovetop: Use a skillet on low heat, covered, for about 5 minutes until warm.
Frequently Asked Questions
Can I use different types of coconut in Key Lime Coconut Cupcakes?
Yes, you can experiment with unsweetened shredded coconut or coconut flakes if you prefer less sweetness.
What can I substitute for key limes in this recipe?
Regular limes work well as a substitute if key limes aren’t available. Just adjust the amount slightly based on your taste preference.
How do I know when my cupcakes are done baking?
Insert a toothpick into the center of a cupcake; it should come out clean or with just a few crumbs attached.
Can I make these cupcakes gluten-free?
Absolutely! Substitute all-purpose flour with gluten-free flour blend. Ensure all other ingredients are also gluten-free.
How do I achieve a fluffier Key Lime Buttercream?
Beat your butter well before adding confectioners’ sugar, incorporating air into the frosting for a lighter texture.
Final Thoughts
These Key Lime Coconut Cupcakes are not only delicious but also versatile enough for any occasion. You can customize them with additional toppings like toasted coconut or even swap out flavors in the frosting. Be sure to try this recipe and discover how delightful these treats can be!
Key Lime Coconut Cupcakes
Indulge in the tropical delight of Key Lime Coconut Cupcakes! These fluffy cupcakes blend the rich flavor of coconut with the tangy zing of key lime, creating a refreshing treat that’s perfect for any occasion—from summer barbecues to birthday parties. Topped with a luscious key lime buttercream frosting and sprinkled with toasted coconut flakes, these cupcakes not only taste amazing but also look stunning on any dessert table. Easy to prepare and sure to impress your guests, these cupcakes are a must-try for anyone who loves vibrant flavors in their desserts.
- Prep Time: 20 minutes
- Cook Time: 20 minutes
- Total Time: 40 minutes
- Yield: Makes approximately 12 cupcakes 1x
- Category: Dessert
- Method: Baking
- Cuisine: Tropical
Ingredients
- 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
- 3 tablespoons coconut cream
- 2 ounces cream cheese (softened)
- 1 cup confectioners' sugar (sifted)
- 1/2 cup shredded coconut
- 1/2 cup unsalted butter (softened)
- 3 cups confectioners' sugar (divided)
- 2 tablespoons lime zest
- 1 tablespoon freshly squeezed lime juice
- 1/4 cup coconut flakes (toasted)
Instructions
- Preheat oven to 350°F (175°C) and line a cupcake pan with liners.
- In a bowl, whisk together flour, baking powder, and salt.
- Cream butter and sugar until fluffy. Mix in egg yolks and vanilla.
- Combine wet ingredients: coconut milk and coconut cream.
- Gradually add dry ingredients to wet mixture, folding in shredded coconut.
- Beat egg whites until stiff peaks form; gently fold into batter.
- Fill cupcake liners two-thirds full and bake for about 20 minutes or until a toothpick comes out clean. Cool completely on wire racks.
- For frosting, beat cream cheese and butter until smooth; mix in lime zest, juice, and sifted confectioners' sugar.
- Frost cooled cupcakes and garnish with toasted coconut flakes.
Nutrition
- Serving Size: 1 cupcake (70g)
- Calories: 280
- Sugar: 20g
- Sodium: 150mg
- Fat: 12g
- Saturated Fat: 7g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 40g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 50mg
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