Irresistible Key Lime Pound Cake: A Zesty Twist for Every Occasion
Forget the same old lemon! While lemon pound cake holds a special place in our hearts, sometimes it’s wonderful to shake things up with a vibrant, zesty alternative. This Key Lime Pound Cake is precisely that – a delightful departure that brings a burst of tangy-sweet flavor, perfect for any gathering or simply to brighten your day.
You might be wondering, “Who really gets excited for St. Patrick’s Day?” Honestly, for many of us, the holiday used to mean little more than a fun excuse to pinch friends who forgot their green attire. But over the years, I’ve come to appreciate one significant bonus of any holiday: the food! There’s an undeniable joy in creating and sharing special treats, especially sweets. So when my friend Jen from Jen’s Favorite Cookies invited me to participate in a St. Patrick’s Day recipe collaboration, I was all in. What better way to celebrate than with a deliciously green-ish, uniquely flavored dessert?
The Inspiration: A Quest for Perfect Key Lime Flavor
My journey to this fantastic Key Lime Pound Cake began with a local gem – a charming cupcake bakery right here in town. Their Key Lime Cupcakes are nothing short of unbelievable. Each bite is a sublime balance of tart and sweet, with a wonderfully moist crumb that leaves you craving more. If only my wallet allowed, I’d devour them by the dozen! Alas, a bakery has overhead costs, and one tiny cupcake sets you back about $2.50. Two cupcakes for $5.00? That’s a tough sell for something so small; the cake barely fills the paper wrapper. While I genuinely admire their success and always try to support local businesses, I’m not one to splurge on something I know I can create myself in my own kitchen, often with even more satisfaction.
That personal challenge sparked a mission: to capture that incredible Key lime flavor in a homemade dessert. While I’m still perfecting my replica of their exact cupcake, I stumbled upon a truly phenomenal creation in the process: this dense, moist Key Lime Pound Cake. The flavor profile is almost identical to those sweet little cupcakes, only in a more substantial, comforting pound cake form. It’s rich, buttery, and infused with that unmistakable Key lime tang. To make things even easier and ensure an authentic taste, I was thrilled to find real Key Lime Juice at the grocery store. This meant I didn’t have to go through the laborious task of squeezing countless tiny Key limes – a true time-saver that doesn’t compromise on flavor!
Why This Key Lime Pound Cake Stands Out
This Key Lime Pound Cake isn’t just a seasonal treat; it’s a showstopper any time of year. Its unique characteristics make it a standout dessert:
- Vibrant Flavor: The star of the show is, of course, the Key lime. Unlike regular limes, Key limes offer a more aromatic, slightly less acidic, and distinctly floral citrus note. This translates into a cake that is bright, refreshing, and genuinely exhilarating to the palate. The balance of tartness and sweetness is perfectly calibrated, making each slice a delightful experience.
- Perfect Texture: As a pound cake, it boasts a wonderfully dense yet incredibly moist crumb. It’s substantial without being heavy, and the buttery richness is simply unparalleled. This texture also allows it to hold up beautifully, making it an excellent candidate for gifting or making ahead.
- Beautiful Presentation: With an optional hint of green food coloring, this cake can visually match its zesty flavor, making it perfect for St. Patrick’s Day or any occasion where you want to add a pop of color. Drizzled with its simple, yet elegant Key lime glaze, it’s truly a feast for the eyes as well as the taste buds.
- Versatility: While it fits perfectly into a St. Patrick’s Day celebration, its tropical and refreshing notes make it ideal for spring brunches, summer barbecues, or even a cozy winter afternoon tea when you crave a taste of sunshine.
Baking Tips for Pound Cake Perfection
Crafting a perfect pound cake is a rewarding experience. Here are a few tips to ensure your Key Lime Pound Cake turns out flawlessly every time:
- Room Temperature Ingredients: This is crucial for pound cakes. Ensure your butter, eggs, and buttermilk are at room temperature. This allows them to emulsify properly, creating a smooth, uniform batter and a tender, even crumb.
- Don’t Overmix: Once you start adding the flour, mix only until just combined. Overmixing develops the gluten in the flour, leading to a tough, dry cake. A few lumps are perfectly fine!
- Properly Grease and Flour Your Pan: Whether you’re using a Bundt pan or loaf pans, take the time to grease them thoroughly with shortening or butter, then dust liberally with flour. This prevents the cake from sticking and ensures a clean release. For intricate Bundt pans, a baking spray with flour is also an excellent option.
- Test for Doneness: Every oven is different. Use the suggested baking time as a guide, but always test your cake with a wooden skewer or toothpick inserted into the center. It should come out with moist crumbs, not wet batter.
- Cooling Process: Allow the cake to cool in the pan for the recommended 15 minutes before inverting it onto a wire rack. This allows the cake to set fully and reduces the risk of it breaking apart. Let it cool completely before applying the glaze.
The Irresistible Key Lime Glaze
The Key lime glaze isn’t just an afterthought; it’s an essential component that elevates this pound cake from great to extraordinary. Made simply with powdered sugar and fresh Key lime juice, it adds another layer of intense citrus flavor and a beautiful, glistening finish. The glaze soaks ever so slightly into the top crust of the cake, creating a wonderfully tender, sweet-tart layer that complements the rich cake beneath. Prepare it to a thick, pourable consistency – not too thin, not too thick – for the best result. A generous drizzle makes all the difference.
As you gather your ingredients and prepare to bake, remember the spirit of sharing that inspired this recipe. This Key Lime Pound Cake is not just a dessert; it’s a delightful experience waiting to be shared. And speaking of sharing, be sure to check out all the other wonderful recipes my friends have made for St. Patrick’s Day below. It’s a fantastic collection of festive treats!
1. Key Lime Pound Cake by Joan at Chocolate Chocolate & More
14. Irish Potato Oatmeal Bread from Sarah at What Smells So Good
Key Lime Pound Cake Recipe

Ingredients
- 1 cup (2 sticks) unsalted butter, softened
- 2 cups granulated sugar
- 3/4 cup buttermilk
- 1/3 cup fresh Key lime juice
- 5 large eggs, at room temperature
- 3 cups all-purpose flour
- 1 1/2 teaspoons salt
- 1/2 teaspoon baking powder
- 1/2 teaspoon baking soda
- Green food coloring (optional, for vibrant color)
For the Key Lime Glaze:
- 2 cups powdered sugar
- 3-4 tablespoons fresh Key lime juice
Instructions
- Preheat oven to 350 degrees F (175 C). Place oven rack in lowest position. Thoroughly grease and flour a 10-12 cup Bundt pan or two 8×4 inch loaf pans.
- In a small bowl, whisk together the buttermilk and Key lime juice. Set aside.
- In a large mixing bowl, using an electric mixer, cream the softened butter and granulated sugar together until light and fluffy (about 3-5 minutes). Add the eggs one at a time, beating well after each addition to fully combine and incorporate. In a separate medium bowl, combine the all-purpose flour, salt, baking soda, and baking powder; stir to ensure they are well mixed. Gradually add the dry flour mixture to the butter mixture alternately with the buttermilk-lime juice mixture, starting and ending with the flour mixture. Mix on low speed just until combined; be careful not to overmix. If you desire a greener cake, add a few drops of green food coloring and stir gently to incorporate. Spoon the batter evenly into the prepared pan(s). Bake for 50-60 minutes, or until a wooden skewer or toothpick inserted into the center comes out with moist crumbs (not wet batter).
- Remove the cake from the oven and let it rest in the pan for 15 minutes. This allows it to set before it’s moved. After 15 minutes, carefully invert the cake(s) onto a wire cooling rack to cool completely.
- To prepare the glaze, combine the powdered sugar and 3-4 tablespoons of Key lime juice in a small bowl. Whisk until smooth and to a thick, pouring consistency. If it’s too thick, add a few more drops of lime juice; if too thin, add a little more powdered sugar. Drizzle the glaze generously over the completely cooled pound cake. Allow the glaze to set for about 30 minutes before slicing and serving.
Did you make this recipe?
Please leave a comment on the blog or share a photo on Instagram!
Craving More Pound Cake Delights?
If you’ve fallen in love with the rich, moist texture of pound cake, you’re in for a treat! There are endless flavor possibilities to explore. Here are some of our other favorite pound cake recipes that offer unique twists and delicious experiences.
Chocolate Kahlua Pound Cake
Cranberry Walnut Pound Cake
Chocolate Pumpkin Spice Pound Cake
Lemon Sour Cream Pound Cake
Vanilla Chai Pound Cake
7-Up Pound Cake
Chocolate Bliss Cake