Key Lime Pound Cake Bursting with Zesty Citrus Flavor

This Key Lime Pound Cake Is a Slice of Sunshine You’ll Crave All Year Long

If you’re looking for a dessert that sings with citrus and feels like a tropical vacation in every bite, this Key Lime Pound Cake delivers just that. Moist, buttery, and perfectly balanced between sweet and tart, this cake is a crowd-pleaser at brunches, potlucks, or sunny afternoon teas.


Why I Love This Recipe

There’s something magical about lime zest and juice when swirled into a tender pound cake batter. This recipe uses key lime juice for its distinct tart flavor, balanced by the creamy richness of sour cream. The glaze? Just a two-ingredient drizzle that adds even more zing. It’s sunshine in cake form—and ridiculously easy to make.


Ingredients

  • 2 1/2 cups all-purpose flour
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 cup unsalted butter, room temperature
  • 2 1/2 cups granulated sugar
  • 6 large eggs
  • 1/4 cup key lime juice
  • 1 tablespoon lime zest
  • 1 cup sour cream
  • 1 teaspoon vanilla extract
  • For the glaze:
    • 1 cup powdered sugar
    • 2–3 tablespoons key lime juice
    • Extra lime zest (optional, for garnish)

Swaps and Notes

  • No key lime juice? Regular lime juice works in a pinch but won’t have quite the same floral zing.
  • Greek yogurt can sub in for sour cream if needed.
  • Add shredded coconut or even white chocolate chips for extra flair.

Step-by-Step Instructions

  1. Preheat & Prep: Set oven to 350°F (175°C). Grease and flour a bundt or pound cake pan.
  2. Dry Mix: Sift together flour, baking soda, and salt in a bowl.
  3. Cream Butter & Sugar: Beat butter and sugar in a large bowl until light and fluffy (3–5 minutes).
  4. Add Eggs: Beat in eggs one at a time. Mix well after each addition.
  5. Flavor Boost: Stir in key lime juice, lime zest, vanilla, and sour cream until smooth.
  6. Combine: Gradually add the dry ingredients to the wet, mixing gently until just combined.
  7. Bake: Pour batter into pan and smooth the top. Bake for 60–70 minutes or until a toothpick comes out clean.
  8. Cool: Let cool in the pan 15 minutes, then turn out onto a rack to cool completely.
  9. Glaze It: Whisk together powdered sugar and lime juice. Drizzle over cooled cake. Garnish with zest if desired.

Tips for Success

  • Don’t overmix the batter—just combine until you no longer see streaks of flour.
  • Use fresh lime zest for the most aromatic flavor.
  • Make sure the cake is completely cool before glazing, or the drizzle may melt off.

Serving Suggestions & Pairings

Serve slices with a dollop of whipped creamlime slices, and a few fresh berries. For drink pairings, this cake is dreamy alongside a tall glass of blueberry lemonade or a simple classic margarita if you’re feeling fancy.


Storage & Leftovers

Wrap leftovers tightly and store at room temperature for up to 3 days or refrigerate for 5 days. You can also freeze slices for up to 2 months—just thaw and glaze before serving.


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Final Thoughts

This Key Lime Pound Cake brings bright, bold flavor with a soft, buttery crumb that’s impossible to resist. Whether you’re baking for a special occasion or just want something sweet with a twist, this cake delivers every time.

Tried it? Let me know how it turned out! Don’t forget to follow for more sweet, savory, and zesty recipes from my kitchen to yours. 🍰💛