Why Make This Recipe
Key Lime Cupcakes are a delightful treat, perfect for those who enjoy a zesty and sweet flavor. These cupcakes bring the sunshine of Florida right to your kitchen with their fresh key lime taste. They are great for parties, celebrations, or just a cozy snack at home. The creamy frosting adds a rich touch that complements the key lime flavor beautifully. If you want to impress friends and family with a tropical twist, this recipe is an excellent choice.
How to Make Key Lime Cupcakes
Ingredients
- 1 1/2 cups all-purpose flour
- 1 cup granulated sugar
- 1/2 teaspoon baking powder
- 1/4 teaspoon baking soda
- 1/4 teaspoon salt
- 1/2 cup unsalted butter, softened
- 2 large eggs
- 1/2 cup sour cream
- 1/4 cup fresh key lime juice
- 1 tablespoon key lime zest
- 1 teaspoon vanilla extract
- 1 cup cream cheese, softened
- 3 cups powdered sugar
- 1/4 cup fresh key lime juice (for frosting)
- 1 tablespoon key lime zest (for frosting)
Directions
- Preheat your oven to 350°F (175°C) and line a cupcake pan with paper liners.
- In a bowl, whisk together the flour, baking powder, baking soda, and salt.
- In a separate large bowl, beat the butter and sugar together until light and fluffy. Add the eggs one at a time, mixing well after each addition.
- Stir in the sour cream, key lime juice, lime zest, and vanilla extract until combined.
- Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
- Divide the batter evenly among the cupcake liners and bake for 18-20 minutes, or until a toothpick comes out clean.
- Allow the cupcakes to cool completely.
- For the frosting, beat the cream cheese until smooth, then gradually add the powdered sugar and 1/4 cup key lime juice. Mix until creamy and smooth.
- Frost the cooled cupcakes with the key lime cream cheese frosting and top with additional lime zest if desired.
- Serve and enjoy your tropical treat!
How to Serve Key Lime Cupcakes
Key Lime Cupcakes are best enjoyed fresh, but they can also be served after a few hours of cooling. You can place them on a pretty platter to impress your guests. If you want to enhance the tropical feel, you can add a slice of lime or a little mint leaf on top. These cupcakes also pair well with a glass of iced tea or lemonade.
How to Store Key Lime Cupcakes
To keep your Key Lime Cupcakes fresh, store them in an airtight container. You can leave them at room temperature for about two days. If you want to keep them longer, place them in the refrigerator, where they can last up to a week. Just make sure to let them come to room temperature before serving for the best taste.
Tips to Make Key Lime Cupcakes
- Measure your ingredients carefully for the best results.
- Make sure the butter is softened but not melted to get the right texture when beating it with sugar.
- Do not overmix the batter; mix until just combined to keep the cupcakes light and fluffy.
- If you want extra lime flavor, you can add more key lime zest to both the cupcake batter and the frosting.
Variation
You can customize these cupcakes in many ways! Try adding a little crushed graham cracker to the batter for a crusty bottom, mimicking a key lime pie. You can also make mini versions of these cupcakes for bite-sized treats.
FAQs
1. Can I use regular limes instead of key limes?
Yes, you can use regular limes; however, the flavor will be slightly different. Key limes have a unique tartness that makes these cupcakes special.
2. How can I make these cupcakes gluten-free?
You can substitute all-purpose flour with a gluten-free flour blend. Make sure to follow the ratio indicated on the gluten-free flour package for the best results.
3. Can I freeze Key Lime Cupcakes?
Yes, you can freeze the cupcakes without frosting. Wrap them tightly in plastic wrap, then place them in an airtight container. They can be frozen for up to three months. Thaw them in the refrigerator when ready to eat and frost them afterward.

Key Lime Cupcakes
Ingredients
Method
- Preheat your oven to 350°F (175°C) and line a cupcake pan with paper liners.
- In a bowl, whisk together the flour, baking powder, baking soda, and salt.
- In a separate large bowl, beat the butter and sugar together until light and fluffy. Add the eggs one at a time, mixing well after each addition.
- Stir in the sour cream, key lime juice, lime zest, and vanilla extract until combined.
- Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
- Divide the batter evenly among the cupcake liners and bake for 18-20 minutes, or until a toothpick comes out clean.
- Allow the cupcakes to cool completely.
- For the frosting, beat the cream cheese until smooth, then gradually add the powdered sugar and 1/4 cup key lime juice. Mix until creamy and smooth.
- Frost the cooled cupcakes with the key lime cream cheese frosting and top with additional lime zest if desired.