Why Make This Recipe
Key Lime Pound Cake is a delightful treat that brings a taste of the tropics to your kitchen. The sweet and tangy flavor of key limes gives this cake a refreshing twist, making it perfect for any occasion. Whether you’re enjoying a quiet afternoon at home or entertaining guests, this pound cake delights the senses and leaves everyone wanting more.
How to Make Key Lime Pound Cake
Ingredients
- 2 ½ cups all-purpose flour
- 2 ½ teaspoons baking powder
- ½ teaspoon salt
- 1 cup unsalted butter, softened
- 2 cups granulated sugar
- 4 large eggs
- 1 tablespoon grated lime zest (from 2-3 key limes)
- ½ cup freshly squeezed key lime juice (from 4-5 key limes)
- 1 cup sour cream
- 1 teaspoon vanilla extract
Directions
- Preheat the oven to 350°F (175°C). Grease two 9×5-inch loaf pans or one bundt pan with butter and lightly dust with flour.
- In a large bowl, whisk together the flour, baking powder, and salt. Set aside.
- In another large bowl, cream together the softened butter and granulated sugar using an electric mixer until light and fluffy, about 3-5 minutes.
- Add the eggs one at a time, making sure each egg is fully incorporated before adding the next. Mix in the grated lime zest and freshly squeezed key lime juice. The mixture may appear slightly curdled, but that’s normal.
- Gradually add the dry ingredients to the wet mixture, alternating with the sour cream. Start and finish with the flour mixture. Mix until just combined—do not overmix.
- Pour the batter evenly into the prepared pans. Bake for 50-60 minutes (loaf pans) or 60-70 minutes (bundt pan) or until a toothpick inserted in the center comes out clean.
- Allow the cake to cool in the pan for 15 minutes before transferring it to a wire rack to cool completely.
How to Serve Key Lime Pound Cake
Key Lime Pound Cake is delicious on its own, but you can enhance it further. Serve slices with a dollop of whipped cream or a scoop of vanilla ice cream. Fresh berries, like strawberries or raspberries, pair nicely with the tart flavor of the cake. For a touch of elegance, drizzle a simple glaze made with powdered sugar and lime juice over the top.
How to Store Key Lime Pound Cake
To keep your Key Lime Pound Cake fresh, wrap it tightly in plastic wrap or store it in an airtight container at room temperature. This cake can last for up to 4 days. For longer storage, you can freeze the cake. Wrap it well and place it in the freezer. When you’re ready to enjoy it, simply thaw it in the refrigerator overnight.
Tips to Make Key Lime Pound Cake
- Make sure to use fresh key limes for the best flavor.
- Don’t overmix your batter; this can make the cake dense.
- For an extra burst of lime flavor, consider adding a lime glaze on top after it cools.
Variation
Feel free to add coconut flakes to the batter for a tropical twist. You can also substitute lemon juice for a lemon pound cake version if you can’t find key limes.
FAQs
-
Can I use regular limes instead of key limes?
- Yes, you can use regular limes, but the flavor will be slightly different as key limes tend to be more tart and aromatic.
-
How can I tell when my cake is done baking?
- You can check by inserting a toothpick into the center of the cake. If it comes out clean, the cake is done.
-
Can I make mini cakes with this recipe?
- Absolutely! You can fill mini loaf pans with the batter and reduce the baking time to about 25-30 minutes. Check for doneness with a toothpick.

Key Lime Pound Cake
Ingredients
Method
- Preheat the oven to 350°F (175°C). Grease two 9×5-inch loaf pans or one bundt pan with butter and lightly dust with flour.
- In a large bowl, whisk together the flour, baking powder, and salt. Set aside.
- In another large bowl, cream together the softened butter and granulated sugar using an electric mixer until light and fluffy, about 3-5 minutes.
- Add the eggs one at a time, making sure each egg is fully incorporated before adding the next. Mix in the grated lime zest and freshly squeezed key lime juice. The mixture may appear slightly curdled, but that’s normal.
- Gradually add the dry ingredients to the wet mixture, alternating with the sour cream. Start and finish with the flour mixture. Mix until just combined—do not overmix.
- Pour the batter evenly into the prepared pans. Bake for 50-60 minutes (loaf pans) or 60-70 minutes (bundt pan) or until a toothpick inserted in the center comes out clean.
- Allow the cake to cool in the pan for 15 minutes before transferring it to a wire rack to cool completely.