Classic Key Lime Pound Cake – Rich, Buttery and Zesty Lime Dessert
This key lime pound cake is soft, rich, and full of bright citrus flavor. It has a buttery base with a fresh lime taste that makes every bite feel light and sweet at the same time. The texture is dense like a classic pound cake, but still very moist and tender inside.
This easy key lime pound cake recipe is simple to make and uses basic ingredients. It is a great dessert for gatherings, holidays, or just a quiet day at home when you want something homemade and comforting.
Why You Will Love This Recipe
- Bright and fresh key lime flavor in every bite
- Soft, buttery, and moist texture
- Simple pantry ingredients
- Easy step-by-step process
- Perfect for parties, brunch, or dessert
- Stays moist for days when stored properly
Ingredients
- 1 cup unsalted butter, softened
- 2 cups granulated sugar
- 4 large eggs
- 3 cups all-purpose flour
- 1 tsp baking powder
- 1/2 tsp salt
- 1 cup milk
- 1/4 cup key lime juice
- 1 tbsp key lime zest
- 1 tsp vanilla extract
For the glaze:
- 1 cup powdered sugar
- 2–3 tbsp key lime juice
Ingredient Notes or Substitutions
- Fresh key lime juice gives the best flavor, but regular lime juice can be used if needed
- Lime zest is very important for strong citrus taste, so do not skip it
- Use full-fat milk for a richer and softer cake texture
- Butter should be soft to the touch but not melted, this helps with proper creaming
- You can use sour cream instead of part of the milk for an even more moist cake
- Vanilla extract adds balance, but a small amount of almond extract can be used for a different flavor
Step-by-Step Instructions
Cream Butter and Sugar Until Light and Fluffy
Place the softened butter and sugar into a large mixing bowl. Using a hand mixer or stand mixer, beat the mixture on medium speed for about 3 to 5 minutes. The mixture should turn pale in color and look fluffy. This step is very important because it adds air into the batter, which helps the cake bake up soft and tender.
Add Eggs One at a Time
Add the eggs one at a time into the butter mixture. Mix well after each egg. Make sure each egg is fully mixed before adding the next one. This helps keep the batter smooth and prevents it from curdling.
Mix the Dry Ingredients Separately
In a separate bowl, add the flour, baking powder, and salt. Stir or whisk everything together so the ingredients are evenly combined. This step ensures the cake rises evenly and has a consistent texture.
Combine Wet and Dry Ingredients Slowly
Add the dry ingredients into the butter mixture in small parts. Alternate with adding the milk. Start with dry ingredients, then add some milk, and repeat until everything is combined. Mix gently and do not overmix. Overmixing can make the cake dense and tough.
Add Key Lime Juice, Zest, and Vanilla
Pour in the key lime juice, add the lime zest, and mix in the vanilla extract. Stir gently until everything is just combined. The batter should smell fresh and citrusy at this stage.
Pour Batter Into Prepared Pan
Grease a loaf pan or bundt pan well with butter or oil. Pour the batter into the pan and spread it evenly. Lightly tap the pan on the counter to remove air bubbles.
Bake Low and Slow
Place the pan into a preheated oven at 325°F (163°C). Bake for about 60 to 70 minutes. The cake is ready when a toothpick inserted into the center comes out clean or with a few crumbs.
Cool the Cake Properly
Remove the cake from the oven and let it cool in the pan for about 10 to 15 minutes. Then carefully take it out and place it on a wire rack to cool completely. Cooling fully helps the glaze set better.
Prepare and Add the Glaze
In a small bowl, mix powdered sugar with key lime juice until smooth. The glaze should be pourable but not too thin. Drizzle it over the cooled cake. Let it set before slicing.
Tips for the Best Results
- Always use room temperature ingredients for smooth mixing
- Do not skip the creaming step, it helps create a soft texture
- Measure flour correctly by spooning it into the cup and leveling it
- Do not overmix once flour is added
- Bake at a lower temperature for even cooking
- Let the cake cool fully before adding glaze
Variations or Add-ins
- Add shredded coconut for a tropical flavor
- Mix in white chocolate chips for sweetness
- Use a cream cheese glaze instead of a simple glaze
- Add extra lime zest for a stronger citrus taste
- Top with fresh berries like strawberries or blueberries
What to Serve With It
- Fresh whipped cream
- Vanilla ice cream
- Hot coffee or tea
- Fresh fruit slices
- Light citrus salad
Key Lime Pound Cake
Ingredients
Method
- Preheat the oven to 325°F (163°C). Grease a loaf or bundt pan well and set aside.
- In a large bowl, beat the butter and sugar together for 3 to 5 minutes until the mixture becomes light in color and fluffy in texture. This step helps create a soft cake.
- Add the eggs one at a time, mixing well after each addition. Make sure the batter stays smooth before moving to the next step.
- In a separate bowl, whisk together the flour, baking powder, and salt until evenly combined.
- Add the dry ingredients into the wet mixture in small parts, alternating with the milk. Mix gently after each addition. Do not overmix the batter.
- Stir in the key lime juice, lime zest, and vanilla extract. Mix just until everything is combined and smooth.
- Pour the batter into the prepared pan and spread evenly. Lightly tap the pan to remove air bubbles.
- Bake for 60 to 70 minutes, or until a toothpick inserted in the center comes out clean or with a few crumbs.
- Allow the cake to cool in the pan for 10 to 15 minutes, then remove and let it cool completely on a wire rack.
- In a small bowl, mix powdered sugar with key lime juice until smooth. Drizzle the glaze over the cooled cake and let it set before slicing.
Notes
- Use fresh key lime juice and zest for the best bright citrus flavor. Bottled juice will not taste as fresh.
- Make sure the butter, eggs, and milk are at room temperature before mixing. This helps create a smooth batter and even texture.
- Do not overmix the batter after adding the flour. Overmixing can make the pound cake heavy and dense.
- Spoon and level the flour when measuring so the cake stays soft and moist. Too much flour can dry out the cake.
- Baking times may vary depending on the pan size and oven. Check the cake with a toothpick near the end of baking.
- Let the cake cool fully before adding the glaze or the glaze may melt into the cake.
- Store leftover cake in an airtight container at room temperature for up to 3 days or refrigerate for up to 1 week.
- This cake also freezes well. Wrap slices tightly and freeze for up to 2 months.
- For extra lime flavor, add additional lime zest to the glaze before drizzling over the cake.
This easy key lime pound cake is soft, moist, and full of fresh citrus flavor. It is simple to make but tastes like something special. The sweet and tangy glaze makes it even better. It is the kind of dessert that looks nice but is still easy enough for any day. And honestly, once you cut that first slice, it is hard to stop at just one.
