As I grabbed a slice of this luscious Key Lime Pound Cake, I could instantly feel the refreshing zest of the citrus dance on my palate. The delightful combination of buttery richness and vibrant lime notes is truly irresistible! This cake is not only perfect for summer gatherings with friends and family, but it also makes a wonderfully indulgent treat for any day of the year. With simple ingredients and quick prep time, you’ll find that whipping up this moist dessert will elevate your baking game while impressing everyone around the table. Are you ready to dive into a slice of sunshine?

Why is Key Lime Pound Cake a Must-Try?
Zesty Flavor Explosion: Each bite of this cake delivers a refreshing burst of tangy Key lime that perfectly complements its buttery richness.
Effortless Baking: With just a few simple ingredients, this recipe ensures that even novice bakers can achieve baking perfection without stress.
Versatile Delight: Whether served at summer parties or as a delightful afternoon snack with tea, it’s guaranteed to be a crowd-pleaser that leaves everyone wanting more.
Moist, Tender Texture: The heavy cream combined with the cake flour creates a dreamy texture that melts in your mouth, making every slice a pure indulgence.
Quick Prep Time: Ready in less than an hour, this cake fits seamlessly into your busy schedule, allowing you to enjoy homemade goodness without spending all day in the kitchen.
Plus, if you love citrus desserts, you might also enjoy our delicious Eggnog Cupcakes Nutmeg or even try a piece of our rich Chocolate Mousse Cake for a different flavor experience!
Key Lime Pound Cake Ingredients
For the Cake:
- White Sugar – Sweetness and structure; can be substituted with coconut sugar for a richer flavor.
- Unsalted Butter – Adds moisture and richness; ensure it is softened for easier mixing.
- Shortening – Contributes to tenderness; can be replaced with an equal amount of butter for a richer taste.
- Cake Flour – Provides a soft crumb; all-purpose flour can be used, but the texture may be denser.
- Baking Powder – Leavening agent to help the cake rise; always check for freshness.
- Salt – Enhances flavor; can be omitted for a low-sodium version.
- Large Eggs (6) – Binds ingredients and adds moisture; room temperature eggs work best for better emulsification.
- Heavy Cream – Contributes to a moist texture; half-and-half can be a lower-fat alternative.
- Key Lime Juice (¼ cup) – Provides the distinctive tartness; fresh juice is recommended for best results.
- Lime Zest (1 tsp) – Adds aromatic citrus flavor; can substitute with lemon zest for a different citrus flair.
- Vanilla Extract (1 tsp) – Adds depth of flavor; use pure vanilla extract for the best taste.
For the Glaze:
- Powdered Sugar – Sweetness and glaze texture; no direct substitutes recommended for optimal consistency.
- Key Lime Juice (2 tbsp) – For flavor in the glaze; fresh is ideal for maximum zestiness.
- Vanilla Extract (½ tsp) – Enhances sweetness in the glaze; always opt for pure for a richer flavor.
This delightful Key Lime Pound Cake will be the refreshing treat your guests remember long after they’ve savored the last slice! Enjoy baking and the delicious indulgence that follows!
Step‑by‑Step Instructions for Key Lime Pound Cake
Step 1: Preheat and Prepare
Begin by preheating your oven to 350°F (175°C). While the oven warms up, take a bundt or loaf pan and generously grease it with butter or shortening, then dust with flour to ensure a non-stick surface. This preparation is crucial for the flawless release of your Key Lime Pound Cake after baking.
Step 2: Cream Butter and Sugar
In a large mixing bowl, combine the softened unsalted butter, shortening, and white sugar. Using a hand mixer or stand mixer, beat the mixture on medium speed until it becomes light and fluffy, which should take about 3-5 minutes. This step is essential for creating a tender cake, so be sure to incorporate plenty of air during mixing.
Step 3: Add the Eggs
Next, incorporate the six large eggs into the creamed mixture, adding them one at a time. Beat well after each addition to ensure they are fully mixed in; this should take about 1-2 minutes. The eggs will help bind your ingredients, contributing to the richness of the Key Lime Pound Cake.
Step 4: Mix in Cream and Flavors
Once the eggs are well incorporated, pour in the heavy cream, freshly squeezed Key lime juice, lime zest, and vanilla extract. Mix everything together at low speed until just combined, making sure not to overmix. You want to achieve a smooth batter that captures that refreshing citrus flavor for your Key Lime Pound Cake.
Step 5: Sift and Combine Dry Ingredients
In a separate bowl, whisk together the sifted cake flour, baking powder, and salt. This step helps to aerate the flour and evenly distribute the leavening agent. Gradually add this dry mixture to the wet ingredients, folding gently until just combined. Be cautious not to overwork the batter as it can affect the cake’s tenderness.
Step 6: Bake to Perfection
Transfer the batter into the prepared pan, spreading it evenly. Place the pan in your preheated oven and bake for 55-65 minutes. To check for doneness, insert a toothpick into the center of the cake; it should come out clean or with a few moist crumbs. Keep an eye on it to avoid overbaking.
Step 7: Cool Down
Once baked, remove the Key Lime Pound Cake from the oven and let it cool in the pan for about 10 minutes. This allows it to set a bit before transferring. After the cooling period, carefully invert the cake onto a wire rack to cool completely, allowing air to circulate for a perfect texture.
Step 8: Prepare the Glaze
While the cake cools, whisk together powdered sugar, fresh Key lime juice, and vanilla extract in a small bowl until smooth. The glaze should be thick yet pourable. This delightful mixture will bring an extra layer of zestiness to your Key Lime Pound Cake when drizzled on top.
Step 9: Glaze the Cake
Once the pound cake has completely cooled, drizzle the prepared glaze over the top. Allow it to set for a few minutes before slicing. The shiny, sweet glaze will enhance the enjoyment of your moist Key Lime Pound Cake and create an inviting presentation for your guests.

Expert Tips for Key Lime Pound Cake
Perfect Butter: Ensure your unsalted butter is at room temperature for easy creaming; cold butter will lead to a dense texture.
Gentle Mixing: Mix only until the dry ingredients are incorporated to avoid developing gluten, which can toughen your Key Lime Pound Cake.
Toothpick Test: Keep an eye on baking time; start testing with a toothpick around the 55-minute mark to prevent overbaking.
Fresh Juice: Opt for fresh Key lime juice instead of bottled to enhance the cake’s vibrant flavor profile significantly.
Cool Properly: Allow the cake to cool in the pan for 10 minutes before transferring it to a wire rack; this helps maintain moisture and prevents breaking.
Make Ahead Options
These Key Lime Pound Cakes are perfect for meal prep enthusiasts! You can prep the batter up to 24 hours in advance; simply mix all the wet and dry ingredients as outlined, then store the batter covered in the refrigerator. This helps the flavors meld beautifully, making each slice even more delicious. Additionally, the baked cake can be stored at room temperature for up to 3 days before serving, or refrigerated for up to a week. Just remember to glaze the cake shortly before serving to maintain that fresh, zesty taste. By prepping ahead, you’ll enjoy delightful, homemade Key Lime Pound Cake without the last-minute rush!
Key Lime Pound Cake Variations
Embrace your creativity and elevate this delightful Key Lime Pound Cake with these fun twists and substitutions!
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Citrus Twist: Experiment with orange or lemon juice for a uniquely flavored cake that still delivers that zesty punch. Each citrus fruit brings a different character to your dessert, evoking a refreshing summer vibe.
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Dairy-Free: Substitute heavy cream with coconut cream and use a dairy-free butter alternative. This swaps the richness while giving the cake a tropical flair that complements the lime beautifully.
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Nutty Surprise: Mix in toasted macadamia nuts or pecans for added crunch and a deeper flavor profile. Their buttery, earthy notes pair perfectly with the bright citrus, creating a satisfying contrast.
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Coconut Infusion: Add shredded unsweetened coconut to the batter for a delightful tropical escape. This will provide a chewy texture that harmonizes with the creamy elements of the cake, making it irresistible.
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Spicy Kick: Incorporate a pinch of cayenne or crushed red pepper flakes for an unexpected heat that balances the cake’s sweetness. The hint of spice will surely surprise and delight your taste buds!
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Glorious Glaze: Elevate the glaze by adding a splash of rum or coconut extract for an extra layer of flavor. This simple modification can transform the dish into a tropical celebration, perfect for summer gatherings.
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Berry Bliss: Serve slices with a generous handful of fresh berries, like strawberries or raspberries, for a burst of color and tartness. The freshness of the fruit enhances the cake’s flavor, making it an elegant dessert option.
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Zesty Layer Cake: Use this batter to create delightful layer cakes. Simply bake in two round pans instead of a loaf pan. With each layer filled with creamy frosting, you’ll have a stunning centerpiece for any gathering!
Don’t forget, for more citrusy goodness, our Eggnog Cupcakes Nutmeg and Chocolate Cherry Cake are delicious options to satisfy your sweet tooth. Enjoy experimenting with your Key Lime Pound Cake!
What to Serve with Key Lime Pound Cake
As you indulge in this sweet, citrusy creation, you’ll want to consider delightful pairings that enhance your dessert experience!
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Fresh Berries: The tartness of raspberries or strawberries brings a lovely contrast to the cake’s sweetness, creating a refreshing balance on the palate. Their bright colors are perfect for presentation too!
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Whipped Cream: A light dollop of whipped cream adds a beautiful creaminess, making every bite even more indulgent. It complements the zesty flavor of the Key Lime Pound Cake without overwhelming it.
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Coconut Ice Cream: The tropical essence of creamy coconut simultaneously soothes and uplifts the flavors of your cake, delivering a delightful harmony that feels like a little slice of paradise.
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Mango Salsa: A fruity salsa bursting with diced mango, cilantro, and lime can add a bright and tangy punch, transforming your slice of cake into a vibrant dessert spread.
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Coffee: A warm, freshly brewed cup of coffee pairs beautifully with the buttery richness of the cake. The bitterness of the coffee will enhance the sweetness of the Key Lime Pound Cake, making for a comforting finale to any meal.
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Mint Tea: Refreshing mint tea acts as a palate cleanser while providing a soothing quality. The cooling effect complements the zesty lime flavor, making it perfect for a light afternoon treat.
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Coconut Macaroons: For a fun texture contrast, crispy coconut macaroons alongside your Key Lime Pound Cake create a harmonious tropical theme. Their chewiness mirrors the cake’s moistness brilliantly.
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Chocolate Drizzle: A light drizzle of dark chocolate can elevate the cake’s sophisticated appeal, balancing its tartness with a touch of rich sweetness.
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Caribbean Rum Punch: For something spirited, a fruity rum punch can infuse joy into your dessert experience, enhancing the tropical flavors and adding a celebratory element.
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Cheesecake Bars: The creamy richness of cheesecake bars served alongside your Key Lime Pound Cake creates a dessert platter that invites indulgence, and the flavor contrast adds intrigue to your celebration!
How to Store and Freeze Key Lime Pound Cake
Room Temperature: Store leftovers in an airtight container at room temperature for up to 3 days to maintain freshness and moisture without refrigeration.
Fridge: If you’d like to keep it longer, refrigerate the Key Lime Pound Cake in an airtight container for up to a week. This will preserve its flavor, but may slightly alter the texture.
Freezer: For extended storage, wrap the cake tightly in plastic wrap and then in aluminum foil. Freeze for up to 3 months. Thaw overnight in the fridge when ready to enjoy.
Reheating: To serve warm, gently heat slices in the microwave for about 10-15 seconds, or warm in an oven at 350°F (175°C) for a few minutes, ensuring it stays moist and delicious.

Key Lime Pound Cake Recipe FAQs
What kind of Key limes should I use?
Absolutely! For the best flavor, I recommend using fresh Key limes. Look for limes that are firm to the touch, with a rich green color. Avoid any with dark spots or blemishes, which can indicate overripeness.
How long can I store Key Lime Pound Cake?
You can store the cake at room temperature in an airtight container for up to 3 days to maintain its moist texture. If you prefer to keep it longer, refrigerate it in the same type of container for up to a week. Just remember, refrigeration can slightly alter the texture, but the flavor will still be delightful!
Can I freeze Key Lime Pound Cake?
Yes, you can freeze this cake for up to 3 months. Start by wrapping it tightly in plastic wrap, followed by a layer of aluminum foil to prevent freezer burn. When you’re ready to enjoy your cake, simply thaw it overnight in the refrigerator and bring it to room temperature before serving.
What should I do if my cake sinks in the middle?
Very! A sunken cake could result from overmixing or using ingredients that weren’t at room temperature. Make sure to mix only until just combined, especially after adding the flour. Using room temperature eggs and butter also helps create a stable structure, so give that a try next time.
Is this Key Lime Pound Cake safe for my pets?
While Key lime juice offers delightful flavor for humans, it’s important to note that citrus fruits are generally not recommended for dogs and can lead to digestive upset. Always keep a close eye on what your furry friends might manage to sneak!
Can I substitute any of the ingredients for dietary preferences?
Absolutely! If you’re looking for alternatives, you can replace the shortening with an equal amount of butter for richness. For a lower-fat version, consider using half-and-half instead of heavy cream. If you’re gluten-sensitive, gluten-free cake flour can also work here, although the texture will differ slightly.

Zesty Key Lime Pound Cake for Ultimate Summer Bliss
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C) and grease a bundt or loaf pan.
- Cream the softened butter, shortening, and sugar together until light and fluffy.
- Add the eggs one at a time, beating well after each addition.
- Mix in the heavy cream, Key lime juice, lime zest, and vanilla extract until just combined.
- Sift together the flour, baking powder, and salt, then fold it gently into the wet mixture.
- Transfer the batter into the prepared pan and bake for 55-65 minutes.
- Cool the cake in the pan for about 10 minutes before inverting onto a wire rack.
- Whisk together powdered sugar, Key lime juice, and vanilla extract for the glaze.
- Once the cake is cooled, drizzle the glaze over it and let it set.

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