Zesty Key Lime Pie Cupcakes: This recipe delivers all the tangy, tropical flavor of a classic Key lime pie in a delightful, bite-sized cupcake format, perfect for any occasion. Enjoy the ease of this recipe and its bright, refreshing taste that’s sure to become a crowd-pleaser.
Key Ingredients for Zesty Key Lime Pie Cupcakes
- 1 ½ cups all-purpose flour
- 1 teaspoon baking powder
- ½ teaspoon baking soda
- ¼ teaspoon salt
- ½ cup unsalted butter, softened
- 1 cup granulated sugar
- 2 large eggs
- 1 teaspoon vanilla extract
- ½ cup buttermilk
- ½ cup key lime juice (from about 8-10 key limes)
For the Key Lime Frosting:
- 1 cup unsalted butter, softened
- 3 cups powdered sugar
- ¼ cup key lime juice (from about 3-4 key limes)
- 1 teaspoon lime zest
- 2-4 tablespoons milk or heavy cream (as needed for consistency)
For Garnish (Optional):
- Whipped cream
- Graham cracker crumbs
- Thin lime slices
- Maraschino cherries
How to Make Zesty Key Lime Pie Cupcakes
Whip up these Zesty Key Lime Pie Cupcakes in a flash, offering a burst of sunshine with every bite! This recipe is incredibly simple to follow, ensuring a moist, tender crumb with a delightful key lime zing. You'll be amazed at how easy it is to achieve that iconic pie flavor in a portable cupcake form. Get ready to enjoy this refreshing treat in just about 30 minutes of active preparation time, plus baking and cooling.
Step-by-Step Instructions
- Preheat and Prepare: Preheat your oven to 350°F (175°C). Line a 12-cup muffin tin with cupcake liners or grease and flour each cup thoroughly.
- Combine Dry Ingredients: In a medium bowl, whisk together the all-purpose flour, baking powder, baking soda, and salt. Set aside.
- Cream Butter and Sugar: In a large mixing bowl, beat the softened butter and granulated sugar together with an electric mixer on medium-high speed until light and fluffy, about 2-3 minutes.
- Add Eggs and Vanilla: Beat in the eggs, one at a time, making sure to scrape down the sides of the bowl after each addition. Stir in the vanilla extract.
- Alternate Dry and Wet Ingredients: Gradually add the dry ingredients to the wet ingredients, alternating with the buttermilk and key lime juice. Begin and end with the dry ingredients, mixing on low speed until just combined. Do not overmix. You should have about 1/3 of the dry ingredients, then half the liquid, another 1/3 dry, the remaining liquid, and finally the last 1/3 dry.
- Fill Cupcake Liners: Divide the batter evenly among the prepared cupcake liners, filling each about two-thirds full.
- Bake: Bake for 18-22 minutes, or until a wooden skewer inserted into the center of a cupcake comes out clean.
- Cool the Cupcakes: Let the cupcakes cool in the muffin tin for 5-10 minutes before transferring them to a wire rack to cool completely. This is crucial before frosting.
- Make the Key Lime Frosting: While the cupcakes are cooling, prepare the frosting. In a large bowl, beat the softened butter until creamy. Gradually add the powdered sugar, mixing on low speed until incorporated.
- Add Lime Flavor: Add the key lime juice and lime zest to the frosting. Beat on medium-high speed until the frosting is light and fluffy. If the frosting is too thick, add milk or cream one tablespoon at a time until the desired consistency is reached. If it’s too thin, add a bit more powdered sugar.
- Frost the Cupcakes: Once the cupcakes are completely cool, generously frost them with the key lime frosting.
- Garnish (Optional): Decorate each cupcake with a swirl of whipped cream, a sprinkle of graham cracker crumbs, a thin lime slice, or a maraschino cherry, if desired.
Why You’ll Love This Zesty Key Lime Pie Cupcakes
These Zesty Key Lime Pie Cupcakes are a delightful dream come true for any citrus lover, perfectly capturing the essence of a classic Key lime pie but in a convenient and adorable cupcake form. Imagine biting into a light, fluffy cake bursting with bright, tangy key lime flavor, topped with a dreamy, creamy key lime frosting that’s just the right amount of sweet and tart. It’s a taste sensation that’s far more vibrant and refreshing than a standard vanilla cupcake.
Not only do these cupcakes offer an explosion of sunny tropical flavors, but they also provide a wonderful cost-saving alternative to buying individual slices of pie. You get the same beloved dessert experience for a fraction of the price, making them perfect for parties, potlucks, or just a special treat for yourself. The creamy, zesty frosting, reminiscent of a perfectly set pie filling, combined with the optional graham cracker crumb topping truly elevates these little cakes. So go ahead, ditch the dessert dilemma and whip up these Zesty Key Lime Pie Cupcakes – your taste buds will thank you!
Storing and Reheating Tips
Properly storing your Zesty Key Lime Pie Cupcakes will ensure their deliciousness lasts for days.
- Refrigeration: Store unfrosted or frosted cupcakes in an airtight container in the refrigerator for up to 3-4 days. This is especially important if your frosting contains cream cheese or dairy that requires refrigeration.
- Freezing (Unfrosted): For longer storage, you can freeze unfrosted cupcakes. Wrap them tightly in plastic wrap, then place them in a freezer-safe bag or container. They can be frozen for up to 2 months. Thaw them at room temperature before frosting.
- Freezing (Frosted): It’s generally not recommended to freeze frosted cupcakes as the frosting can become grainy or weep upon thawing. If you must, ensure the frosting is stable (like a buttercream) and freeze in a well-sealed container, thawing carefully in the refrigerator.
- Reheating: These cupcakes are best served at room temperature. If refrigerated, allow them to sit out for about 30 minutes before serving to soften the frosting and bring the cake to its optimal texture. Reheating is not typically necessary or recommended for cupcakes.
Final Thoughts
These Zesty Key Lime Pie Cupcakes are a burst of sunshine in every bite! They offer a fantastic way to enjoy the beloved flavor of Key lime pie in an easy-to-share and incredibly delicious cupcake format. We highly encourage you to try this simple recipe for a taste of tropical paradise at home!

Zesty Key Lime Pie Cupcakes
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C). Line a 12-cup muffin tin with cupcake liners or grease and flour each cup thoroughly.
- In a medium bowl, whisk together the all-purpose flour, baking powder, baking soda, and salt. Set aside.1 ½ cups all-purpose flour, 1 teaspoon baking powder, ½ teaspoon baking soda, ¼ teaspoon salt
- In a large mixing bowl, beat the softened butter and granulated sugar together with an electric mixer on medium-high speed until light and fluffy, about 2-3 minutes.½ cup unsalted butter, softened, 1 cup granulated sugar
- Beat in the eggs, one at a time, making sure to scrape down the sides of the bowl after each addition. Stir in the vanilla extract.1 teaspoon vanilla extract
- Gradually add the dry ingredients to the wet ingredients, alternating with the buttermilk and key lime juice. Begin and end with the dry ingredients, mixing on low speed until just combined. Do not overmix. You should have about 1/3 of the dry ingredients, then half the liquid, another 1/3 dry, the remaining liquid, and finally the last 1/3 dry.½ cup buttermilk, ½ cup key lime juice (from about 8-10 key limes)
- Divide the batter evenly among the prepared cupcake liners, filling each about two-thirds full.
- Bake for 18-22 minutes, or until a wooden skewer inserted into the center of a cupcake comes out clean.
- Let the cupcakes cool in the muffin tin for 5-10 minutes before transferring them to a wire rack to cool completely. This is crucial before frosting.
- While the cupcakes are cooling, prepare the frosting. In a large bowl, beat the softened butter until creamy.1 cup unsalted butter, softened
- Gradually add the powdered sugar, mixing on low speed until incorporated.3 cups powdered sugar
- Add the key lime juice and lime zest to the frosting. Beat on medium-high speed until the frosting is light and fluffy. If the frosting is too thick, add milk or cream one tablespoon at a time until the desired consistency is reached. If it’s too thin, add a bit more powdered sugar.¼ cup key lime juice (from about 3-4 key limes), 1 teaspoon lime zest, 2-4 tablespoons milk or heavy cream (as needed for consistency)
- Once the cupcakes are completely cool, generously frost them with the key lime frosting.
- Decorate each cupcake with a swirl of whipped cream, a sprinkle of graham cracker crumbs, a thin lime slice, or a maraschino cherry, if desired.whipped cream, graham cracker crumbs, thin lime slices, maraschino cherries