Have you ever experienced the invigorating tang of key lime combined with the buttery richness of pound cake? Imagine slicing into a moist, golden loaf, where each bite is infused with zesty citrus and velvety sweetness. The aroma wafting through your kitchen as this cake bakes is sure to evoke delightful memories of sun-soaked days and refreshing summer treats. This Key Lime Pound Cake delivers a harmonious blend of flavors that is not only appealing to the senses but also incredibly easy to prepare. It’s a budget-friendly dessert that requires minimal fuss while impressing friends and family alike. Whether you’re gathering for a casual weeknight dinner or throwing a summer soiree, this cake is the perfect addition to your dessert table. Get ready to indulge in a slice of heaven with this Key Lime Pound Cake recipe.
Why should you whip up this delightful treat? For starters, the flavor combination of key lime and buttery cake is simply irresistible. Each bite offers a burst of citrusy freshness, making it a standout dessert option. Plus, the straightforward preparation means you won’t be spending hours in the kitchen. In just a little over an hour, you can serve a delicious, homemade cake that will have everyone coming back for seconds. It also makes a lovely make-ahead option — just bake, store, and enjoy when you’re ready. With so many appealing qualities, this Key Lime Pound Cake is sure to become a staple in your dessert repertoire.
How to Make Key Lime Pound Cake
Ingredients
- 1 ½ cups all-purpose flour
- 1 teaspoon baking powder
- ¼ teaspoon salt
- ½ cup unsalted butter, softened
- 1 cup sugar
- 3 large eggs
- ½ cup sour cream
- 2 tablespoons key lime juice
- 1 teaspoon key lime extract
- Powdered sugar for dusting (optional)

Directions
- Preheat your oven to 350°F (175°C) and grease a loaf pan to ensure easy removal after baking.
- In a mixing bowl, whisk together the flour, baking powder, and salt until well combined. Set this aside for later use.
- In a separate bowl, cream the softened butter and sugar together using a hand mixer until the mixture is light and fluffy, about 3-4 minutes.
- Add the eggs, one at a time, ensuring to beat well after each addition to incorporate fully.
- Stir in the sour cream, followed by the key lime juice and key lime extract, mixing until smooth.
- Gradually add the dry ingredient mixture to the wet ingredients. Mix gently until just combined; take care not to over-mix to maintain a tender texture.
- Pour the batter into your prepared loaf pan, smoothing the top with a spatula for an even finish.
- Bake in the preheated oven for 55-65 minutes or until a toothpick inserted in the center comes out clean, with a light golden color on the top.
- Once done, allow the cake to cool in the pan for about 10 minutes before carefully transferring it to a wire rack to cool completely.
- For a touch of elegance, dust the cooled cake with powdered sugar just before serving, if desired.
How to Serve Key Lime Pound Cake
This cake is best enjoyed at room temperature, allowing the flavors to shine. Slice it into generous pieces and serve it on a beautiful platter to showcase its inviting golden hue. Pair this delicious treat with a dollop of whipped cream, a scoop of vanilla ice cream, or fresh berries for added flavor and texture. If you’re feeling adventurous, a drizzle of tangy lime glaze can elevate the experience even further. Serve it at a summer picnic, birthday party, or simply as an afternoon snack with a refreshing glass of iced tea or lemonade for a delightful treat.
How to Store Key Lime Pound Cake
To store your Key Lime Pound Cake, keep it in an airtight container at room temperature for up to 3 days. If you’d like it to last longer, freezing is an excellent option. Wrap the cooled cake tightly in plastic wrap and then in aluminum foil or place it in a freezer-safe container. It can be frozen for up to 3 months. When you’re ready to enjoy it, transfer it to the refrigerator overnight to thaw. For optimal flavor, reheat individual slices in the microwave for a few seconds or warm them in an oven set to low heat, ensuring they are tender and fresh upon serving. Always inspect the cake for any signs of spoilage before indulging.
Tips to Make Key Lime Pound Cake
- Room Temperature Ingredients: Ensure your butter and eggs are at room temperature for better incorporation and a fluffier cake.
- Zest for Extra Flavor: For an additional burst of key lime flavor, consider adding a teaspoon of fresh lime zest to the batter.
- Avoiding Overmixing: Gently fold in the dry ingredients to prevent a dense texture; a few lumps are okay.
- Flavor Infusion: Experiment with different extracts like vanilla or almond combined with the key lime for a unique flavor twist.
- Checking for Doneness: Stick a toothpick in the center. If it comes out clean with a few moist crumbs, the cake is done.
- Cake Shape: Use a bundt pan for an elegant shape that can be easily glazed or served with fruit.
- Make Ahead: You can prepare the batter the night before and store it in the fridge overnight.
- Sweetness Adjustments: If you prefer a less sweet cake, reduce the sugar by up to 1/4 cup without sacrificing flavor.
- Chilling the Cake: Before serving, chill the cake in the refrigerator for a refreshing twist.
- Leftover Celebration: Transform leftover cake into a trifle by layering it with pudding, fruit, and whipped cream.
Variations
- Vegan Key Lime Pound Cake: Swap dairy products for plant-based substitutes, using coconut oil and flax eggs for a delicious vegan version.
- Almond Key Lime Delight: Add slivered almonds to the batter for a nutty crunch paired with the tangy lime flavor for an unexpected twist.
- Gluten-Free Key Lime Pound Cake: Substitute the all-purpose flour with a gluten-free flour blend and ensure all other ingredients are gluten-free.
- Savory Key Lime Infusion: Add a pinch of sea salt and a sprinkle of fresh herbs, such as basil or thyme, to create a unique sweet-savory flavor profile.
- Coconut Key Lime Cake: Incorporate shredded coconut into the batter for a tropical spin, enhancing the cake’s texture and flavor.
FAQs
Can I make this ahead of time?
Absolutely! This cake can be made a day or two in advance. Simply store it in an airtight container at room temperature. The flavors may even intensify as it sits!
How do I store leftovers?
Store leftover Key Lime Pound Cake in an airtight container on the counter for up to 3 days. If you prefer longer storage, wrap it in plastic and freeze it.
Can I freeze this dish?
Yes, this cake freezes well. Wrap it tightly in plastic wrap and then in aluminum foil to prevent freezer burn. It can last up to 3 months.
What can I substitute for sour cream?
You can substitute sour cream with plain yogurt or a non-dairy equivalent for a similar creamy texture and tangy flavor.
How do I prevent the cake from sticking to the pan?
Make sure to grease the loaf pan thoroughly with butter or non-stick spray. You can also line the bottom with parchment paper for added insurance against sticking.
Can I double/halve this recipe?
Yes, you can easily adjust the amounts. Halving the recipe works well, but if doubling it, be sure to mix in batches to maintain texture.
With its vibrant flavor and moist texture, this Key Lime Pound Cake is a treat you’ll want to share. It’s a comforting dessert that’s sure to impress, offering the perfect ending to any meal or occasion. Enjoy your baking adventure and the delightful results!

Key Lime Pound Cake
Ingredients
Dry Ingredients
- 1.5 cups all-purpose flour
- 1 teaspoon baking powder
- 0.25 teaspoon salt
Wet Ingredients
- 0.5 cups unsalted butter, softened
- 1 cups sugar
- 3 large eggs
- 0.5 cups sour cream
- 2 tablespoons key lime juice
- 1 teaspoon key lime extract
Optional
- Powdered sugar for dusting optional
Instructions
Preparation
- Preheat your oven to 350°F (175°C) and grease a loaf pan.
- In a mixing bowl, whisk together the flour, baking powder, and salt. Set aside.
- In a separate bowl, cream the softened butter and sugar using a hand mixer until light and fluffy, about 3-4 minutes.
- Add the eggs one at a time, beating well after each addition.
- Stir in the sour cream, key lime juice, and key lime extract until smooth.
Baking
- Gradually add the dry mixture to the wet ingredients, mixing gently until just combined.
- Pour the batter into the prepared loaf pan and smooth the top.
- Bake for 55-65 minutes or until a toothpick inserted in the center comes out clean.
- Allow the cake to cool in the pan for about 10 minutes, then transfer to a wire rack to cool completely.
Serving
- Dust the cooled cake with powdered sugar before serving, if desired.