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If you love bright, citrusy desserts that practically scream sunshine, this Key Lime Bundt Cake is about to become your new favorite. It’s soft, moist, and packed with that signature tangy-sweet flavor that makes key lime desserts so irresistible.

Whether you’re baking for a spring gathering, summer cookout, or just because you’re craving something refreshing, this cake delivers big flavor with minimal fuss.

Why You’ll Love This Key Lime Bundt Cake

• Bursting with fresh key lime flavor
• Incredibly moist thanks to sour cream
• Simple ingredients you probably already have
• Perfect for spring and summer entertaining
• Beautiful presentation with minimal decorating

Lime desserts have always been a favorite of mine. The combination of sweet and tart is truly amazing and can be used in so many different ways. We use lime in a lot of our non-alcoholic beverage drinks and many desserts. One of my favorites is the Mojito Cupcakes I made a couple of years ago.

What Are Key Limes?

Key lime is a hybrid citrus fruit that is green when picked and yellow when ripe. When you compare a regular lime to a key lime, there are some differences. For one, key limes are smaller, more acidic, and have a stronger citrus aroma.

The juice is also sweeter than regular limes. That is why they usually use key limes in more dessert-type dishes.

This cake is moist and made from scratch, which is the perfect combination of sweet and tart.

Ingredients Needed for a Key Lime Bundt Cake

For the cake

• 3/4 cup salted butter, softened
• 1 ¾ cup granulated sugar
• 2 Tablespoons Key lime zest 
• 3 large eggs
• 1/4 cup fresh Key lime juice 
• 3 cups all-purpose flour
• 1 teaspoon baking soda
• 1 ½ cups buttermilk

For the icing

• 2 ½ cups powdered sugar
• 3 tablespoons Key lime juice 
• 1 Tablespoon milk

1. Preheat oven to 350 F°. Spray a 12-cup bundt cake pan with non-stick spray.
2. In a stand mixer, beat the butter, sugar, and lime zest on medium speed until creamy.
3. Beat in the eggs, one at a time, and then add lime juice until everything is combined.
4. In another bowl, combine flour and baking soda. Gradually add the dry mixture to the wet mixture, making sure to alternate between dry and buttermilk.
5. Pour the batter into the prepared bundt pan. Spread out evenly.
6. Bake for 50 minutes, or until a toothpick inserted in the center comes out clean. 
7. Remove the cake from the oven. Let the cake rest for 10 minutes in the pan, then invert the cake onto a plate and place it on a cooling rack. 
8. Let the Key Lime Bundt cake cool completely before pouring on the icing.
9. For the icing: Whisk together powdered sugar, Key lime juice, and milk until smooth and no lumps remain.
10. When the cake is cool, pour the glaze all over the top. 
11. Garnish with extra lime zest, and lime slices if desired.
12. Slice cake and serve.

Tips for the Best Key Lime Bundt Cake

• Don’t overmix the batter—it can make the cake dense
• Use room temperature ingredients for a smoother batter
• Grease your Bundt pan thoroughly (every nook!)
• Let the cake cool slightly before removing to avoid breaking

Variations to Try

• Add shredded coconut for a tropical twist
• Mix in white chocolate chips
• Top with whipped cream and lime slices for serving
• Turn it into a layered dessert with cream cheese frosting

How to Store Key Lime Bundt Cake

• Store covered at room temperature for up to 3 days
• Refrigerate for up to 5 days
• Freeze (unglazed) for up to 3 months

Final Thoughts

This Key Lime Bundt Cake is the perfect balance of sweet and tart, making it a standout dessert for any occasion. It’s simple enough for a weekday treat but impressive enough for guests.

One bite, and you’ll feel like you’re sitting somewhere tropical—no passport required!

Other Lime Recipes

If you love lime in recipes, then you definitely need to check out my other recipes. These key lime mini loaf cakes taste just as good as the bundt cake above.

If you are looking for a refreshing drink, this Cranberry Lime Spritzer has the perfect amount of lime flavor.

One of my most popular recipes is the Cheesecake Factory Key Lime Cheesecake.

Monday #SpringSweetsWeek Recipes

• Blood Orange Shortbread Cookies from Jolene's Recipe Journal
• Carrot Bundt Cake from Kathryn's Kitchen Blog
• Carrot Halwa Ice Cream from Magical Ingredients
• Coconut Pudding with Dragon Fruit from Shockingly Delicious
• Crystalized Ginger Scones with Sake Poached Asian Pears from The Spiffy Cookie
• Easter Candy Crack Bars from Cookaholic Wife
• Easter Charcuterie Board from Devour Dinner
• Frozen Lemonade Pie from Cheese Curd In Paradise
• Hummingbird Cupcakes from Red Cottage Chronicles
• Instant Pot Key Lime Cheesecake from Hezzi-D's Books and Cooks
• Key Lime Pie from Blogghetti
• Perfect Key Lime Sugar Cookies from Daily Dish Recipes
• Lemon Blueberry Jelly Roll from That Recipe
• Lemon Crinkle Cookies from Eat Move Make
• Easy Lemon Posset Tart from Art of Natural Living
• Lemon Scones with Lavender Glaze. from Family Around the Table
• Mocha Cream Puffs from A Kitchen Hoor's Adventures
• Orange Unicorn Doughnuts from Cindy's Recipes and Writings
• Strawberry Chocolate Chip Coffee Cake from Palatable Pastime
• The Best Strawberry Lavender Muffins from Sweet Beginnings
• Strawberry Lemonade Mascarpone Cheesecakes from Karen's Kitchen Stories

We share recipes from #SpringSweetsWeek on Pinterest! Make sure you follow the board to see all the delicious recipes shared this week.

For more lime-flavored recipes, check these out!

• Coconut Lime Macarons
• Easy Homemade Lime Curd
• Coconut Lime Mojito Mocktail