Name: Key Lime Pound Cake
Prep time: 20 min
Cook time: 1 h 10 min
Total time: 1 h 30 min
Cuisine: American
Ingredients: 1 cup unsalted butter, softened; 2 1/2 cups granulated sugar; 6 large eggs, room temperature; 3 cups all-purpose flour; 1/2 teaspoon baking soda; 1/2 teaspoon salt; 1 cup sour cream, room temperature; 1/4 cup key lime juice; 1 tablespoon key lime zest; 1 teaspoon vanilla extract; 1 cup powdered sugar; 2 to 3 tablespoons key lime juice, for glaze

Jump to Recipe

Key Lime Pound Cake brings bright citrus flavor, a tender crumb, and a buttery finish together in one beautiful Bundt cake. This recipe balances sweet vanilla-rich cake with tart key lime juice and zest, then finishes everything with a smooth key lime glaze. Because the batter uses sour cream, the cake stays moist while still keeping that classic pound cake texture. It works well for birthdays, brunches, holidays, potlucks, and warm-weather gatherings. Also, since it slices cleanly and holds its shape, this Key Lime Pound Cake makes a dependable make-ahead dessert.

Story

I like making Key Lime Pound Cake when I want a dessert that feels special without being fussy. The first time I baked it, the kitchen smelled like butter, vanilla, and fresh lime zest before the cake even left the oven. That combination still feels like the start of a good meal. Unlike a soft layer cake, Key Lime Pound Cake has a tighter crumb, so each slice feels rich and satisfying. However, the key lime juice cuts through the sweetness, which keeps the cake from tasting too heavy. This Citrus pound cake also travels well, so it fits family dinners, bake sales, and backyard parties. If you enjoy a Baked lime dessert with sweet-tart flavor, this Key Lime Pound Cake belongs in your recipe box. Plus, the glaze adds just enough shine and zing to make every slice taste fresh.

Ingredients

1 cup unsalted butter, softened
2 1/2 cups granulated sugar
6 large eggs, room temperature
3 cups all-purpose flour
1/2 teaspoon baking soda
1/2 teaspoon salt
1 cup sour cream, room temperature
1/4 cup key lime juice
1 tablespoon key lime zest
1 teaspoon vanilla extract
1 cup powdered sugar
2 to 3 tablespoons key lime juice, for glaze

Step-by-Step Instructions

This Key Lime Pound Cake comes together best when you measure everything first, bring the dairy and eggs to room temperature, and prepare the Bundt pan before mixing the batter. Since pound cake relies on proper mixing, avoid rushing the creaming step and scrape the bowl often. Also, use fresh key lime juice and zest whenever possible because bottled juice alone will not give the same bright flavor. Once the batter goes into the pan, smooth the top so the cake bakes evenly. Then, after baking, let the cake rest briefly in the pan before turning it out. Finally, drizzle the glaze only after the cake cools completely so it sets nicely instead of melting into the warm surface.

Preparing the Ingredients

Start by preheating the oven to 325°F. Then grease and flour a Bundt pan very well, making sure you coat every ridge and center edge. Next, soften the butter until it gives slightly when pressed, but do not melt it. After that, zest the key limes before juicing them, since whole limes grate more easily. In a medium bowl, whisk the flour, baking soda, and salt until evenly combined. In a separate measuring cup or small bowl, stir the key lime juice, zest, and vanilla together. Also, let the sour cream and eggs sit at room temperature for better blending. This simple prep helps the batter mix smoothly and gives the finished cake a more even texture.

Cooking Instructions

Cream the softened butter and granulated sugar in a large mixing bowl until the mixture looks pale, fluffy, and lighter in texture. Then add the eggs one at a time, mixing well after each addition so the batter stays smooth. Next, add the flour mixture in three additions, alternating with the sour cream. Begin and end with the dry ingredients, and mix only until the flour disappears. After that, stir in the key lime juice, zest, and vanilla mixture. Pour the batter into the prepared Bundt pan and smooth the top. Bake for 70 to 80 minutes, or until a toothpick inserted near the center comes out clean. Cool the cake in the pan for 10 minutes, then turn it onto a wire rack. Once cool, whisk powdered sugar with key lime juice until smooth and drizzle it over the cake.

Tips for Perfect Results

A successful Key Lime Pound Cake depends on gentle mixing, accurate baking, and patient cooling. First, do not skip greasing and flouring the Bundt pan, because pound cake can stick in detailed pans. Also, cream the butter and sugar long enough to build a light base. However, once you add the flour, mix carefully so the crumb stays tender. For the best flavor, use both key lime juice and zest, since the zest carries fragrant citrus oils. This Dense cake recipe should feel rich, but it should not feel dry or tough. Therefore, check the cake near the 70-minute mark and pull it from the oven as soon as the center tests clean.

Common Mistakes to Avoid

Do not use cold butter, cold eggs, or cold sour cream, because cold ingredients can make the batter curdle or mix unevenly. Also, avoid overmixing after the flour goes in, since too much mixing can make the cake chewy instead of tender. Another common mistake involves underpreparing the pan. Even a nonstick Bundt pan needs butter or baking spray plus flour, especially around the center tube. Additionally, do not remove the cake from the pan immediately after baking. Give it 10 minutes to settle, but do not leave it much longer or steam may soften the outer crust. Finally, never glaze a hot cake unless you want the glaze to soak in rather than sit beautifully on top.

Pro Tips for Better Flavor

For brighter flavor, rub the key lime zest into the granulated sugar with your fingertips before creaming it with the butter. This step releases citrus oils and spreads the lime flavor through the whole cake. Also, add a small pinch of extra salt if your butter tastes very mild, because salt balances the sweetness. For a stronger tart finish, make the glaze with 3 tablespoons of key lime juice instead of 2. However, add the juice gradually so the glaze stays thick enough to drizzle. You can also let the glazed cake rest for 20 minutes before slicing, which allows the glaze to set and gives each piece a clean, pretty finish.

Serving and Storage

This Key Lime Pound Cake tastes wonderful on its own, but it also pairs well with whipped cream, fresh berries, toasted coconut, or a small scoop of vanilla ice cream. Because the cake has a firm crumb, it slices neatly for dessert trays and brunch spreads. It also makes a lovely Summer baking recipe when you want something fresh, sunny, and easy to share. For the cleanest slices, use a sharp serrated knife and wipe the blade between cuts. Also, serve it at room temperature so the butter-rich crumb tastes soft and flavorful. If you bake it a day ahead, the citrus flavor becomes even more rounded.

How to Serve

Serve Key Lime Pound Cake in thick slices with extra lime zest sprinkled over the glaze for a fresh look. For a casual dessert, place slices on small plates with coffee or iced tea. For a party, arrange the slices on a cake stand with berries around the base. You can also add a spoonful of lightly sweetened whipped cream beside each slice. Since the cake already has a rich glaze, keep toppings simple. If you want a brighter plate, add sliced strawberries, blueberries, or raspberries. Their natural tartness works well with the sweet cake and gives the dessert a fresh finish.

How to Store Leftovers

Store leftover Key Lime Pound Cake tightly covered at room temperature for up to 3 days. If your kitchen feels warm, refrigerate it for up to 5 days, but wrap it well so it does not dry out. For longer storage, freeze individual slices in plastic wrap, then place them in a freezer-safe bag for up to 2 months. Thaw slices at room temperature before serving. You can also warm a slice for about 10 seconds in the microwave if you prefer a softer texture. However, avoid overheating glazed slices because the glaze can melt and turn sticky.

Conclusion

Key Lime Pound Cake gives you everything a great homemade dessert should offer: buttery richness, fresh citrus flavor, a moist crumb, and a simple glaze that makes the cake feel complete. It uses familiar baking ingredients, yet the key lime juice and zest make it taste bright and memorable. Because it works for holidays, potlucks, brunches, and everyday desserts, this cake can easily become one of your most reliable recipes. Bake it once, let it cool fully, add that tangy glaze, and enjoy a slice that tastes sweet, tart, and beautifully homemade.

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Frequently Asked Questions

Can I use regular lime juice instead of key lime juice?

Yes, you can use regular lime juice if key limes are not available. The flavor will taste slightly less floral and a little sharper, but the cake will still turn out delicious. For the closest match, use fresh lime juice rather than bottled juice. Also, keep the lime zest in the batter because it adds the strongest citrus aroma. If you use regular limes, choose ones that feel heavy for their size and have smooth, fragrant skin.

Why did my pound cake turn out dry?

Dry pound cake usually comes from overbaking, using too much flour, or mixing the batter too long after adding the dry ingredients. Measure flour by spooning it into the cup and leveling it off instead of packing it down. Also, check the cake at 70 minutes, since ovens vary. Pull it from the oven when a toothpick comes out clean or with a few moist crumbs. The sour cream helps keep this cake moist, but careful baking still matters.

Can I make Key Lime Pound Cake ahead of time?

Yes, Key Lime Pound Cake works very well as a make-ahead dessert. Bake the cake one day in advance, cool it completely, and store it tightly covered at room temperature. Add the glaze the day you plan to serve it for the freshest look. You can also freeze the unglazed cake, then thaw and glaze it later. This makes the recipe especially helpful for parties, holidays, and busy weekends.