Key Lime Cake Recipe From Scratch
If you’re on the hunt for a dessert that perfectly balances sweet and tart, look no further than this delightful Key Lime Cake Recipe From Scratch. With its vibrant lime flavor and moist, tender crumb, this cake is perfect for any occasion—from backyard barbecues to elegant dinners. The fresh lime juice and zest infuse the cake with a refreshing citrus burst that is simply irresistible. Plus, there’s something incredibly satisfying about making a cake from scratch, and this recipe makes it easy, even for beginners!
Why This Recipe Is a Must-Try

This Key Lime Cake Recipe From Scratch stands out for several reasons. First, the combination of fresh lime juice and zest creates a cake that is both zesty and flavorful, making it a crowd-pleaser. Second, the cake is incredibly moist thanks to the buttermilk, which adds richness and depth to the flavor. Lastly, it’s an easy recipe that doesn’t require any complicated techniques or equipment, making it accessible for bakers of all skill levels. Whether you’re celebrating a special occasion or simply indulging in a sweet treat, this cake is sure to impress.
Ingredients
To make this delectable Key Lime Cake, you’ll 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 delightful cake is a straightforward process. Follow these easy steps to bring your Key Lime Cake to life:
Step 1: Preheat Your Oven
Begin by preheating your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans to ensure your cake comes out easily.
Step 2: Mix the Dry Ingredients
In a medium bowl, whisk together the all-purpose flour, baking powder, baking soda, and salt. Set this mixture aside while you prepare the wet ingredients.
Step 3: Cream the Butter and Sugar
In a large mixing bowl, using an electric mixer, beat the softened unsalted butter and granulated sugar together on medium speed until the mixture is light and fluffy, about 3-4 minutes. This step is crucial as it incorporates air into the batter, resulting in a lighter cake.
Step 4: Add the Eggs
Add the three large eggs to the butter-sugar mixture, one at a time, ensuring each egg is fully incorporated before adding the next. This will help create a smooth batter.
Step 5: Incorporate the Lime Juice and Zest
Next, pour in the fresh lime juice and add the lime zest. Mix on low speed until combined. The vibrant flavors of the lime will brighten your cake, making it truly special.
Step 6: Alternate Adding Dry Ingredients and Buttermilk
Now, add the dry ingredient mixture to the butter mixture in three parts, alternating with the buttermilk. Start with one-third of the dry ingredients, mix until just combined, then add half of the buttermilk. Repeat this process, finishing with the dry ingredients. This technique ensures a smooth batter without overmixing.
Step 7: Pour and Bake
Divide the batter evenly between the prepared cake pans and smooth the tops with a spatula. Bake in your preheated oven for 25-30 minutes or until a toothpick inserted into the center comes out clean.
Step 8: Cool the Cakes
Once baked, remove the cakes from the oven and let them cool in the pans for about 10 minutes. Then, carefully turn them out onto wire racks to cool completely.
Step 9: Frost and Serve
Once your cakes have cooled completely, it’s time to frost! You can use a simple cream cheese frosting or a whipped lime frosting to complement the tangy flavor of the cake. Spread the frosting between the layers, on the top, and around the sides as desired. Garnish with lime slices or additional zest for a beautiful finish.
Expert Tips
- For the best flavor, use freshly squeezed lime juice and fresh lime zest.
- Make sure all your ingredients are at room temperature for a smoother batter.
- Don’t overmix the batter once you add the dry ingredients; this can lead to a dense cake.
- If you want to add a little extra tang, consider incorporating lime juice into the frosting as well.
Variations and Customizations
- For a tropical twist, add shredded coconut to the batter.
- Replace some of the all-purpose flour with almond flour for a nutty flavor.
- Add a layer of Key Lime curd between the cake layers for an extra burst of flavor.
- Top the cake with fresh fruit, such as berries or mango, for added sweetness and color.
How to Store Leftovers
To keep your Key Lime Cake fresh, store it in an airtight container at room temperature for up to 3 days. If you prefer a longer shelf life, refrigerate it for up to a week. Just make sure to bring it back to room temperature before serving for the best flavor and texture.
FAQ
Can I use bottled lime juice instead of fresh?
While bottled lime juice can work in a pinch, using fresh lime juice will result in a more vibrant flavor and aroma in your Key Lime Cake.
Can I freeze this Key Lime Cake?
Yes! This cake freezes beautifully. Wrap it tightly in plastic wrap and then in aluminum foil to prevent freezer burn. It can be frozen for up to three months. Thaw it overnight in the refrigerator before serving.
What should I do if my cake sinks in the middle?
A sinking cake can be caused by several factors, including underbaking or overmixing the batter. Be sure to follow the baking times and avoid overmixing once you add the dry ingredients.
How can I make the cake more lime-flavored?
To amplify the lime flavor, consider adding more lime zest or a little more lime juice to the batter. You can also incorporate lime zest into the frosting for additional tanginess.
Conclusion
This Key Lime Cake Recipe From Scratch is not just a dessert; it’s an experience. With its refreshing flavors and moist texture, it’s bound to become a favorite in your household. Perfect for any occasion or just a sweet treat after dinner, this recipe is both easy to follow and incredibly rewarding. So, gather your ingredients and get baking; your taste buds will thank you!