Key Lime Cake Recipe From Scratch
If you’re yearning for a bright, zesty dessert that captures the essence of tropical flavors, look no further than this Key Lime Cake Recipe From Scratch. This delightful cake is not only easy to make, but it also brings a burst of citrus flavor that will have your taste buds dancing with joy. With layers of fluffy cake infused with fresh lime juice and zest, this dessert is perfect for any occasion, be it a summer gathering or a cozy family dinner. Let’s dive into the sweet and tangy world of Key Lime Cake!
Why This Recipe Is a Must-Try

This Key Lime Cake Recipe From Scratch stands out for several reasons. First, it’s made with fresh ingredients, ensuring a bright flavor that store-bought cakes simply can’t match. The combination of lime juice and zest provides a refreshing quality, making each bite a little piece of paradise. Additionally, the moist texture of the cake, paired with a light frosting, creates a heavenly experience that’s hard to resist. Whether you’re a seasoned baker or a novice in the kitchen, this recipe is straightforward and rewarding.
Ingredients
To create this luscious Key Lime Cake, you will need the following ingredients:
- 1 ¾ cups all-purpose flour
- 1 ½ teaspoons baking powder
- ½ teaspoon baking soda
- ½ teaspoon salt
- 1 cup unsalted butter, softened
- 1 ½ cups granulated sugar
- 3 large eggs
- ½ cup fresh lime juice
- Zest of 2 limes
- 1 cup buttermilk
How To Make Key Lime Cake Recipe From Scratch

Creating this delicious Key Lime Cake is a breeze. Follow these steps to bring your cake to life.
Step 1: Preheat the Oven
Start by preheating your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans to prevent sticking.
Step 2: Mix Dry Ingredients
In a medium bowl, whisk together the all-purpose flour, baking powder, baking soda, and salt. Set this mixture aside as you prepare the wet ingredients.
Step 3: Cream the Butter and Sugar
In a large mixing bowl, beat the softened unsalted butter and granulated sugar together until the mixture is light and fluffy. This should take about 3-5 minutes using an electric mixer.
Step 4: Add the Eggs
Add the eggs one at a time to the butter and sugar mixture, ensuring each egg is fully incorporated before adding the next.
Step 5: Incorporate Lime Juice and Zest
Pour in the fresh lime juice and add the lime zest to the batter, mixing until well combined. The zesty aroma will fill your kitchen!
Step 6: Combine Wet and Dry Ingredients
Gradually add the flour mixture to the wet ingredients, alternating with the buttermilk. Begin and end with the flour mixture. Mix until just combined; be careful not to overmix.
Step 7: Bake the Cakes
Divide the batter evenly between the prepared cake pans. Bake in the preheated oven for 25-30 minutes, or until a toothpick inserted into the center comes out clean. Once baked, allow them to cool in the pans for 10 minutes before transferring them to a wire rack to cool completely.
Step 8: Frost and Serve
Once the cakes are completely cooled, frost with your favorite cream cheese frosting or a simple whipped cream. Garnish with additional lime zest for an extra pop of flavor. Slice, serve, and enjoy this Key Lime Cake Recipe From Scratch!
Expert Tips
To help you achieve the best results, here are some expert tips to keep in mind:
- Make sure your butter is at room temperature for easier creaming with sugar.
- Use fresh lime juice for the best flavor; bottled juice can alter the taste.
- Don’t overmix the batter to keep your cake light and fluffy.
- Check your cakes a few minutes before the recommended baking time to avoid overbaking.
Variations and Customizations
This Key Lime Cake is incredibly versatile! Here are some variations and customizations to consider:
- Add a layer of lime curd between the cake layers for an extra tangy kick.
- Top with toasted coconut flakes for a tropical flair.
- Incorporate different citrus zest, such as lemon or orange, for a unique twist.
- Make it a Key Lime Cupcake by pouring the batter into cupcake liners and adjusting baking time to about 18-20 minutes.
How to Store Leftovers
To keep your Key Lime Cake fresh, store any leftovers in an airtight container at room temperature for up to 2 days. If you need to keep it longer, refrigerate it for up to a week. For longer storage, you can freeze the cake. Wrap it tightly in plastic wrap and then in aluminum foil, and it will last for about 2-3 months. Just remember to thaw it in the refrigerator overnight before serving.
FAQ
Can I use bottled lime juice instead of fresh?
While you can use bottled lime juice in a pinch, fresh lime juice provides a much brighter flavor that enhances the cake’s overall taste.
What can I substitute for buttermilk?
If you don’t have buttermilk on hand, you can make a quick substitute by mixing 1 cup of milk with 1 tablespoon of vinegar or lemon juice. Let it sit for about 5-10 minutes until it thickens slightly.
Can I make this cake in advance?
Absolutely! You can bake the cake layers in advance and store them in the refrigerator or freeze them. Just frost them when you’re ready to serve.
How can I make the frosting lighter?
For a lighter frosting, consider whipping heavy cream with a bit of powdered sugar and lime zest until soft peaks form. This gives a fluffy, airy topping that complements the cake perfectly.
Conclusion
This Key Lime Cake Recipe From Scratch is a delightful combination of sweet and tangy flavors that will leave you wanting more. Perfect for any occasion or simply to satisfy your sweet tooth, this cake is sure to impress your family and friends. With its easy-to-follow steps and refreshing taste, baking this cake will become a cherished tradition in your home. So grab those limes, and let’s bake up some sunshine!

Key Lime Cake Recipe From Scratch
Instructions
- Preheat the oven to 350°F (175°C) and grease two 9-inch round cake pans.
- In a medium bowl, whisk together the all-purpose flour, baking powder, baking soda, and salt. Set this mixture aside.
- In a large mixing bowl, beat the softened unsalted butter and granulated sugar together until light and fluffy.
- Add the eggs one at a time, ensuring each is fully incorporated before adding the next.
- Mix in the fresh lime juice and zest until well combined.
- Gradually add the flour mixture to the wet ingredients, alternating with the buttermilk, beginning and ending with the flour mixture.
- Divide the batter evenly between the prepared cake pans and smooth the tops.
- Bake for 25-30 minutes, or until a toothpick inserted comes out clean. Allow to cool in the pans for 10 minutes before transferring to a wire rack.
- Once cooled, frost with cream cheese frosting or lime glaze and garnish with additional lime zest.
Equipment
- Large Mixing Bowl
- 9-inch cake pans
Notes
- Make sure your butter is at room temperature for easier creaming with sugar.
- Use fresh lime juice for the best flavor; bottled juice can alter the taste.
- Don’t overmix the batter to keep your cake light and fluffy.
- Check your cakes a few minutes before the recommended baking time to avoid overbaking.