As the sun shines brightly and the temperature rises, there’s nothing quite like the taste of summer captured in a slice of homemade cake. This Key Lime Pound Cake brings a zesty twist to the classic dessert, marrying the rich, buttery texture with the invigorating tang of key limes. It’s not only an effortless recipe that keeps prep time to a minimum but also a delightful centerpiece for any summer gathering—your friends and family will undoubtedly be asking for seconds! With its creamy glaze that dances with lime zest, this cake is perfect for picnics or cozy evenings on the porch. Curious to discover how to whip up this seasonal masterpiece? Let’s dive in!

Why is Key Lime Pound Cake a Must-Try?
Unique Flavor Combination: The zesty brightness of key lime meets the rich, buttery texture of pound cake, offering a refreshing twist that’s hard to resist.
Easy to Prepare: This recipe is beginner-friendly, requiring minimal ingredients and straightforward techniques, making it perfect for home bakers of all levels.
Perfect for Any Occasion: Whether it’s a summer picnic or a simple family dinner, this cake shines as a crowd-pleaser that pairs beautifully with whipped cream or fresh berries.
Versatile Variations: Want to mix things up? Try adding coconut flakes for tropical flair or substituting with other citrus juices—check out our Mini Cheesecake Cups for more delightful ideas!
Moist and Tender: Every slice promises a moist, delicious crumb that captures the essence of a classic key lime pie in cake form, ensuring no one can eat just one piece!
Key Lime Pound Cake Ingredients
This Key Lime Pound Cake combines freshness with a classic recipe, ensuring a delightful summer treat!
For the Cake
- All-Purpose Flour – Forms the base structure; sift for a light texture.
- Baking Powder – Essential for lift; make sure it’s fresh for best results.
- Salt – Enhances flavor; a pinch goes a long way.
- Granulated Sugar – Sweetens and moistens; the heart of your pound cake’s tender crumb.
- Unsalted Butter – Adds richness; soften to room temperature for easy creaming.
- Fresh Lime Juice – The star of the show; use the freshest key limes for vibrant flavor.
- Lime Zest – Intensifies the cake’s aroma; zest before juicing for a more flavorful pop.
- Eggs – Bind ingredients together; room temperature eggs mix more evenly.
- Whole or 2% Milk – Keeps the cake moist; adjust to your preference for creaminess.
For the Glaze
- Powdered Sugar – Creates a smooth, sweet topping; sift to avoid lumps.
- Milk – Adjust consistency; add gradually until you reach your desired thickness.
- Lime Zest – Adds a fragrant pop; consider using extra for enhanced flavor.
Let this Key Lime Pound Cake brighten your summer gatherings and bring smiles to your loved ones!
Step‑by‑Step Instructions for Key Lime Pound Cake
Step 1: Preheat and Prepare Pans
Begin by preheating your oven to 350°F (175°C). While the oven heats, take two 9×5-inch loaf pans and generously grease them with butter or cooking spray, then dust them with flour to prevent sticking. This will ensure your Key Lime Pound Cake releases easily after baking.
Step 2: Sift Dry Ingredients
In a medium-sized mixing bowl, sift together the all-purpose flour, baking powder, and salt. This step aerates the flour and incorporates the leavening agent evenly. Set the bowl aside, as you’ll add these dry ingredients to your wet mixture later, ensuring a light and fluffy cake.
Step 3: Cream Butter and Sugar
In a large mixing bowl or stand mixer, cream together the softened unsalted butter and granulated sugar until the mixture is light and fluffy, about 3-5 minutes. Make sure to scrape down the sides of the bowl as needed. Then, mix in the fresh lime juice, lime zest, and eggs, combining until smooth and well incorporated for a zesty flavor throughout the cake.
Step 4: Combine Wet and Dry Ingredients
Gradually add the pre-sifted dry ingredients to the buttery mixture, alternating with the milk. Start with one-third of the dry ingredients and mix on low speed until just combined, then add half of the milk. Repeat this process, finishing with the dry ingredients, and mix just until the batter is smooth—be careful not to overmix, which could lead to a dense Key Lime Pound Cake.
Step 5: Bake the Cakes
Pour the batter evenly into the prepared loaf pans, smoothing the tops with a spatula. Place the pans in the preheated oven and bake for 55-60 minutes. The cakes are done when a toothpick inserted into the center comes out clean or with just a few crumbs, ensuring a moist and tender texture.
Step 6: Cool in Pans
Once baked, remove the Key Lime Pound Cakes from the oven and allow them to cool in the pans for about 20 minutes. This cooling period helps the cakes settle while still maintaining moisture. After this, carefully transfer them to a wire rack to cool completely, which should take around 2 hours.
Step 7: Prepare the Glaze
While the cakes cool, whisk together the powdered sugar, a few tablespoons of milk, and lime zest in a medium bowl until you achieve a smooth glaze. Adjust the consistency by adding more milk as needed; it should be pourable yet thick enough to cling to the cake, enhancing the Key Lime flavor.
Step 8: Glaze the Cakes
Once the cakes are completely cooled, drizzle the prepared glaze generously over the tops, allowing it to cascade down the sides for a beautiful presentation. Let the glaze set for a few minutes before slicing, as this will create a delightful topping for your Key Lime Pound Cake, ready to serve and enjoy.

What to Serve with Key Lime Pound Cake?
As you savor a slice of this tangy, luscious treat, let’s explore the perfect accompaniments to elevate your dessert experience.
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Whipped Cream: The light, airy texture balances the cake’s density, adding a creamy sweetness that enhances every bite.
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Fresh Berries: Strawberries, blueberries, or raspberries add a pop of color, freshness, and a burst of flavor that pairs beautifully with key lime.
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Coconut Macaroons: These sweet, chewy treats bring tropical flair and a delightful contrast in texture, making for a blissful combination.
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Vanilla Ice Cream: A scoop of creamy vanilla ice cream contrasts the zesty cake, creating a deliciously indulgent dessert duo for hot summer days.
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Mint Tea: The refreshing notes from mint tea cleanse the palate between bites while complementing the lime’s zesty brightness perfectly.
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Pineapple Salsa: This bright, fruity salsa offers a sweet and tangy twist that adds a lively element to your dessert table.
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Limeade: A chilled glass of limeade, with its citrus zing, mirrors the cake’s flavors while providing a refreshing drink option to quench your thirst.
Pair any of these delightful options with your Key Lime Pound Cake, and you’ll create a memorable dessert spread your friends and family will love!
Key Lime Pound Cake Variations & Substitutions
Feel free to get creative and make this Key Lime Pound Cake your own with these fun and flavorful variations!
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Citrus Variations: Replace key lime juice with lemon or orange juice for a different citrusy twist that’s still bright and zesty. The aroma changes, but the refreshing taste remains delightful!
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Add-ins: Incorporate shredded coconut flakes or white chocolate chips into the batter for unexpected bursts of sweetness and texture. These add-ins can elevate the cake’s tropical flair, making each bite a surprise.
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Gluten-Free Option: Swap all-purpose flour with a gluten-free all-purpose baking blend to cater to gluten sensitivities while maintaining a tasty texture. This ensures everyone at your gathering can enjoy a slice!
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Vegan Twist: Replace the eggs with flaxseed meal mixed with water and use almond milk instead of regular milk for a dairy-free and egg-free option. The cake may slightly differ, but it will still be moist and delicious!
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Spice It Up: Add a dash of cinnamon or cardamom to the dry ingredients for a warm, aromatic twist. These spices complement the lime beautifully, offering a unique flavor profile that excites the palate.
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Cream Cheese Glaze: For a richer topping, use cream cheese instead of powdered sugar for the glaze. This adds a luscious creaminess that pairs wonderfully with the key lime flavor.
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Layer Cake: Bake the pound cake in three 8-inch round pans instead of loaf pans, and layer it with key lime-flavored frosting for a stunning birthday cake or special occasion treat. This will definitely impress your guests!
While you’re here exploring those delightful variations, don’t forget to check out our Fried Strawberry Cheesecake or Heaven on Earth Cake recipes for more inspiration in your baking adventures!
Storage Tips for Key Lime Pound Cake
Room Temperature: Keep the cake covered at room temperature for up to 5 days. This maintains moisture and freshness without refrigeration.
Fridge: You can refrigerate the Key Lime Pound Cake if you prefer, but it may slightly alter the texture. Store it in an airtight container for up to 1 week.
Freezer: For longer storage, wrap slices in plastic wrap and then foil, or place in an airtight container. It freezes well for up to 6 months, preserving its delightful flavor.
Reheating: To enjoy your frozen pound cake, thaw in the refrigerator overnight, then bring to room temperature before serving, or warm in the oven at 300°F for about 10-15 minutes.
Tips for the Best Key Lime Pound Cake
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Room Temperature Ingredients: Make sure your butter, eggs, and milk are at room temperature. This helps achieve better emulsion and a fluffy texture for your Key Lime Pound Cake.
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Don’t Overmix: After adding the flour, mix just until combined. Overmixing can lead to a dense cake, which is not what you want in a light pound cake.
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Zest and Juice Fresh Limes: For the best flavor, always use fresh key limes. Store-bought lime juice lacks the bright, vibrant taste that fresh juice provides.
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Check for Doneness Early: Ovens can vary in temperature. Start checking your cake about 5 minutes before the suggested baking time to avoid drying it out.
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Cool Cakes Properly: After baking, let the cakes cool in the pans for 20 minutes before transferring them to a wire rack. This ensures they finish setting without becoming soggy.
Make Ahead Options
This Key Lime Pound Cake is a fantastic choice for busy cooks looking to save time without sacrificing flavor! You can prepare the batter up to 24 hours in advance; simply cover the mixing bowl tightly with plastic wrap and refrigerate to maintain its freshness. For added convenience, consider baking the cakes a day before your event; once cooled, they can be wrapped in plastic and stored at room temperature for up to 3 days. When ready to serve, whip up the creamy glaze while the cake is cooling for a delightful finishing touch. Just remember to drizzle it on shortly before serving to keep that zesty flavor bright and the texture just as delicious!

Key Lime Pound Cake Recipe FAQs
What type of key limes should I use for the best flavor?
Absolutely! For the most vibrant flavor, I recommend using fresh key limes when making your Key Lime Pound Cake. They possess a unique acidity and aromatic zest that regular limes simply can’t match. If you can’t find key limes, Persian limes can be used as a substitute, though the flavor may be slightly less tart.
How should I store my Key Lime Pound Cake?
To keep your Key Lime Pound Cake moist, store it at room temperature, covered with plastic wrap or in an airtight container, for up to 5 days. If you’re looking to keep it longer, refrigeration is an option, though it might change the texture slightly. Just be sure to store it in an airtight container for up to a week.
Can I freeze Key Lime Pound Cake?
Absolutely! Freezing is a great way to enjoy your cake later. To freeze, wrap each slice tightly in plastic wrap and then in aluminum foil or place it in an airtight container. This way, it will stay fresh for up to 6 months. When you’re ready to enjoy, thaw it overnight in the refrigerator, then bring it to room temperature before serving.
Why is my Key Lime Pound Cake dense?
Very! A dense cake may be a result of overmixing once the flour is added. To prevent this, mix just until the ingredients are combined. Also, ensure your baking powder is fresh, as this helps the cake rise. If your ingredients are not at room temperature, this can also lead to a denser texture.
Can I make this Key Lime Pound Cake gluten-free?
You certainly can! To turn this into a gluten-free Key Lime Pound Cake, simply substitute the all-purpose flour with a gluten-free all-purpose baking blend that’s designed for baking. Make sure it contains xanthan gum for better structure. Follow the same measurements as you would with regular flour for the best texture.
Is it safe for pets?
Always be cautious! Key lime and cake ingredients like sugar and butter are not toxic to pets but feeding your furry friends cake isn’t ideal. It’s best to keep your Key Lime Pound Cake away from pets to avoid any digestive upset or adverse reactions.

Key Lime Pound Cake: Refreshing Twist for Summer Bliss
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C) and prepare two greased loaf pans.
- Sift together the flour, baking powder, and salt in a medium bowl.
- Cream together the butter and sugar until light and fluffy, then mix in lime juice, lime zest, and eggs.
- Gradually add the dry ingredients alternating with the milk until just combined.
- Pour the batter into prepared pans and bake for 55-60 minutes until a toothpick comes out clean.
- Cool in pans for 20 minutes before transferring to a wire rack.
- Whisk together powdered sugar, milk, and lime zest to prepare the glaze.
- Drizzle the glaze over cooled cakes and let it set before serving.

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