As I sifted through the citrus bounty in my kitchen, a thought struck me: what if the vibrant zest of Key limes could breathe new life into a classic dessert? Enter the Key Lime Pound Cake, a delightful fusion of buttery richness and tangy brightness that’s sure to elevate any gathering. This easy baking recipe not only offers a refreshing twist but also transforms the beloved pound cake into a sunshine-filled treat perfect for summer celebrations or cozy afternoons. Plus, it’s a fantastic way to impress friends and family while enjoying the satisfaction of homemade goodness. Are you ready to create a slice of tropical paradise that will have everyone asking for seconds?

Why is Key Lime Pound Cake a Must-Try?

Bright, Zesty Flavor: This Key Lime Pound Cake bursts with the vibrant tang of fresh Key limes, making each bite a refreshing treat.
Easy to Make: With straightforward steps, this cake is perfect for bakers of all skill levels.
Perfect for Any Occasion: Whether it’s a summer BBQ or a cozy brunch, this cake elevates any gathering.
Moist and Tender: The buttery richness combined with a light crumb ensures a melt-in-your-mouth experience.
Versatile Variations: Want something different? Try adding coconut or even a cream cheese layer for a delightful twist! Enjoy it alone or with a dollop of whipped cream for that extra touch, just like with my Gingerbread Cake Cinnamon or Pumpkin Cheesecake Cookies for more flavorful desserts!

Key Lime Pound Cake Ingredients

For the Cake
• White Sugar – Provides sweetness and moisture; substitute with brown sugar for a richer flavor.
• Unsalted Butter – Adds richness and tenderness; use room temperature for easier creaming.
• Shortening – Contributes moisture and stability; can be replaced with more butter, but it may alter the texture.
• Cake Flour – Ensures lightness and a tender crumb; all-purpose flour can work in a pinch, but will create a denser cake.
• Baking Powder – Acts as a leavening agent for that perfect lift; check that it’s fresh for best results.
• Salt – Enhances overall flavors; don’t skip it, as it balances the sweetness.
• Large Eggs – Binds and adds structure; using room temperature eggs allows for better mixing.
• Heavy Cream – Provides additional moisture and richness; whole milk can be a lighter alternative.
• Key Lime Juice – The tangy flavor that defines the cake; fresh juice is key for optimal taste.
• Lime Zest – Infuses the cake with aromatic citrus notes; ensure you avoid the bitter white pith.
• Vanilla Extract – Enhances depth of flavor; opt for natural extract for the best quality.

For the Glaze
• Powdered Sugar – Adds sweetness and contributes to a smooth glaze; sifting helps to eliminate lumps.
• Additional Key Lime Juice – Offers complementary flavor that enhances the overall cake experience.
• Vanilla Extract – Just a touch to round out the glaze flavor; use natural for the most robust taste.

This Key Lime Pound Cake is sure to bring sunshine to your table! Enjoy each zesty, moist slice as you share it with family and friends.

Step‑by‑Step Instructions for Key Lime Pound Cake

Step 1: Preheat the Oven
Begin by preheating your oven to 350°F (175°C). While the oven warms up, prepare a bundt or loaf pan by greasing it well with butter or baking spray to ensure an easy release of the cake after it bakes. This step is crucial for achieving that perfect golden crust on your Key Lime Pound Cake.

Step 2: Cream the Sugar Mixture
In a large mixing bowl, combine the white sugar, unsalted butter, and shortening. Using an electric mixer, beat the mixture on medium speed until it becomes light and fluffy, about 3-5 minutes. This process incorporates air into the fats, providing the cake with a tender texture. Once fluffy, gradually add in the eggs, one at a time, mixing well after each addition.

Step 3: Mix in the Wet Ingredients
Next, mix the heavy cream, fresh Key lime juice, lime zest, and vanilla extract into your creamed mixture. Beat everything together until the ingredients are smoothly combined. You should see a beautiful, creamy texture forming, infused with the citrus aroma that defines the essence of this Key Lime Pound Cake.

Step 4: Combine the Dry Ingredients
In a separate bowl, whisk together the cake flour, baking powder, and salt until they are evenly distributed. Slowly incorporate the dry ingredients into the wet mixture, mixing gently until just combined. Be mindful not to overmix, as this will maintain the tender crumb that makes the Key Lime Pound Cake so delightful.

Step 5: Bake the Cake
Pour the batter evenly into your prepared bundt or loaf pan, smoothing the top with a spatula. Place the pan in the preheated oven and bake for 55-65 minutes. Keep an eye on it; you’re looking for a golden-brown top, and a toothpick inserted into the center should come out clean when the cake is done.

Step 6: Cooling the Cake
Once baked, remove the Key Lime Pound Cake from the oven and allow it to cool in the pan for about 10 minutes. This step is essential for letting the structure set before transferring it. After cooling slightly, carefully invert the pan onto a wire rack to cool completely.

Step 7: Prepare the Glaze
While your cake is cooling, whisk together the sifted powdered sugar, additional Key lime juice, and a splash of vanilla extract in a small bowl. Mix until you achieve a smooth glaze that can easily drizzle. This glaze will add a sweet and tangy finish that perfectly complements your Key Lime Pound Cake.

Step 8: Glaze the Cake
Once the cake is completely cool, drizzle the prepared glaze over the top. Allow the glaze to set for a few minutes before slicing into the cake. The lovely, zesty drizzle will not only enhance the flavor but also create a beautiful presentation for your delicious Key Lime Pound Cake.

What to Serve with Key Lime Pound Cake?

Imagine unwinding with a slice of moist, zesty cake and delightful accompaniments that enhance its refreshing flavor!

Whipped Cream: A dollop of lightly sweetened whipped cream adds creaminess, making each bite even more indulgent. It’s the perfect partner for this citrus treat.
Fresh Berries: Strawberries, blueberries, or raspberries bring a burst of juiciness that balances the cake’s sweetness. Their vibrant colors also make your dessert plate pop with freshness!
Mint Sprigs: A sprinkle of fresh mint adds a fragrant touch. This herb’s refreshing flavor ties beautifully with the bright notes of Key lime.
Coconut Flakes: Toasted coconut flakes give a tropical flair that pairs splendidly with the cake’s citrusy essence. It adds texture and a nutty depth to every slice.
Pineapple Salsa: For a unique twist, serve your cake alongside a pineapple salsa. The tangy, sweet chunks of pineapple create a delightful contrast with the tangy cake.
Lemonade or Iced Tea: A glass of icy lemonade or refreshing iced tea amplifies the summery vibe. Their acidity beautifully complements the Key lime flavor, creating a delightful pairing experience.
Chocolate Drizzle: A simple drizzle of melted dark chocolate adds an unexpected richness that can complement the tartness of the cake. This indulgent detail is sure to surprise and delight your guests!
Coffee or Tea: Serving a slice of Key Lime Pound Cake with a warm cup of tea or coffee makes for a cozy afternoon treat. The warmth of the drink enhances the cake’s zesty notes while providing a comforting experience.

Expert Tips for Key Lime Pound Cake

Room Temperature Ingredients: Ensure all your ingredients are at room temperature, as this helps them mix easily for a smoother batter.
Avoid Overmixing: Once the dry ingredients are added, mix gently to maintain a tender texture. Overmixing can lead to a dense cake.
Use Fresh Juice: For the best flavor in your Key Lime Pound Cake, always opt for freshly squeezed Key lime juice instead of bottled options, which can taste artificial.
Toothpick Test: When baking, check for doneness by inserting a toothpick into the center. It should come out clean to ensure your cake is perfectly baked.
Proper Cooling: Let the cake cool in the pan for about 10 minutes before transferring it to a wire rack. This step is crucial for preventing breakage.
Glaze Perfection: Sift the powdered sugar for the glaze to avoid lumps, ensuring a smooth and beautiful finish that complements your cake beautifully.

How to Store and Freeze Key Lime Pound Cake

Room Temperature: Keep the Key Lime Pound Cake in an airtight container for up to 3 days to maintain its moist texture and flavor.

Fridge: If you want to extend its freshness, store the cake in the fridge, where it can last for up to 1 week. Just remember to wrap it tightly to prevent it from drying out.

Freezer: For longer storage, freeze the cake tightly wrapped in plastic wrap and aluminum foil for up to 3 months. Thaw overnight in the fridge before serving.

Reheating: To enjoy your Key Lime Pound Cake warm, simply place slices in the microwave for about 10-15 seconds or enjoy it at room temperature for the best flavor.

Make Ahead Options

Prepare your Key Lime Pound Cake ahead of time to save precious moments on busy days! You can mix the dry ingredients and store them in an airtight container for up to 3 days, ensuring they stay fresh and ready for use. You can also make the cake itself and let it cool completely before storing it, wrapped tightly in plastic wrap, for up to 24 hours at room temperature or up to 3 days in the refrigerator. Just remember to let it sit at room temperature for a bit before glazing. When it’s time to serve, simply drizzle the zesty glaze over the cake, and you’ll have a delightful dessert that tastes just as fresh as if it were baked that same day!

Key Lime Pound Cake Variations & Substitutions

Feel free to explore these delicious variations and swaps to make the Key Lime Pound Cake truly your own! Each option adds a unique twist, making your cake even more delightful.

Milder Flavor: Substitute Persian Limes for Key limes for a less tart taste—perfect for those who prefer a gentler citrus vibe.
Tropical Twist: Add shredded coconut to the batter for a chewy texture and beachy flavor. Pair it with a coconut cream topping for an island vibe!
Nutty Crunch: Mix in chopped nuts like pecans or walnuts for added texture and a wonderful nutty flavor in every bite. Picture that satisfying crunch balancing the soft cake!
Creamy Indulgence: Swirl in a layer of cream cheese between the cake batter to elevate the richness. This variant creates a perfectly balanced, creamy surprise with each slice!
Spiced Delight: Incorporate a pinch of cinnamon or nutmeg to the dry mix for a warm spice that beautifully complements the zesty lime flavor. It gives a lovely fall twist!
Berry Burst: Top the glazed cake with fresh berries, like strawberries or blueberries, for a pop of color and sweetness. Each bite will feel bright and invigorating.
Dairy-Free Version: Swap heavy cream for coconut milk or any dairy-free alternative. You’ll enjoy a light, lush cake without losing that all-important moisture!
For More Flavor: Experiment by tossing in a dash of lime extract along with the lime juice for an intensified citrus experience that will make your cake truly unforgettable!

Now that you have these delicious options, get creative and make this Key Lime Pound Cake a personalized dessert to share with family and friends! You can even enjoy a sweet treat alongside my delightful Vanilla Bean Cheesecake or indulge in the layers of a Caramel Brownie Cheesecake. Happy baking!

Key Lime Pound Cake Recipe FAQs

What type of Key limes should I use?
Absolutely, for the best flavor, I recommend using fresh Key limes over bottled juice. Look for limes that are firm and slightly glossy, which usually indicates ripeness. If fresh Key limes aren’t available, Persian limes can be used instead, but they’ll provide a milder taste.

How should I store my Key Lime Pound Cake?
To preserve the moistness of your Key Lime Pound Cake, store it in an airtight container at room temperature for up to 3 days. If you prefer to keep it longer, refrigerate it, where it will stay fresh for about a week. Just ensure it’s well-wrapped to avoid drying out.

Can I freeze Key Lime Pound Cake?
Yes! You can freeze your Key Lime Pound Cake for up to 3 months. To do this, wrap the cooled cake tightly in plastic wrap followed by aluminum foil. When you’re ready to enjoy it, simply thaw it in the refrigerator overnight before serving. This method helps maintain its delicious flavor and texture.

What should I do if my cake is too dense?
Very! If your Key Lime Pound Cake turns out dense, it’s likely due to overmixing the batter or using cold ingredients. Next time, make sure all your ingredients are at room temperature and mix gently once the dry ingredients are added. Remember to test for doneness with a toothpick too!

Are there any dietary considerations with this cake?
I’m glad you asked! This Key Lime Pound Cake contains dairy and gluten. If you or your loved ones have allergies, consider using dairy-free alternatives for the butter and cream, as well as a gluten-free flour blend. Be sure to double-check labels to suit your specific dietary needs.

How long will the glaze last?
The glaze can be made in advance and stored in an airtight container in the refrigerator for up to a week. Just give it a good whisk before using it again. Keep in mind that you might need to add a splash of Key lime juice to restore the consistency after refrigerating.