Key Lime Cake

A fragrant burst of lime fills the air as you cut into a slice of this cake, revealing its moist, tender crumb. Key Lime Cake is a delightful dessert that takes about an hour to prepare and bake, and its bright flavors are sure to lift your spirits. This recipe works beautifully because it combines fresh ingredients, creating a perfectly balanced sweet and tart profile.

This cake is ideal for anyone who loves citrus desserts or wants to impress at their next gathering. It’s perfect for summer picnics, birthday celebrations, or simply as a sweet treat on a warm day. You can prepare it a day in advance and store it in the fridge, letting the flavors meld and intensify.

Why You’ll Love This Recipe

• The cake is incredibly moist thanks to fresh lime juice and zest.
• A fluffy whipped cream frosting adds a creamy texture that complements the cake perfectly.
• This recipe is simple to make, with straightforward steps for success.
• It’s visually appealing, decorated with a bright garnish of lime zest.

What You’ll Need

Here’s everything you need to get started on this delicious cake.

For the Cake

• 1 3/4 cups all-purpose flour
• 1 1/2 cups granulated sugar
• 1/2 cup unsalted butter, softened
• 3 large eggs
• 1/2 cup milk
• 1/2 cup fresh lime juice
• Zest of 2 limes
• 1 1/2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 1/4 teaspoon salt

For the Frosting

• 1 cup heavy cream
• 2 cups powdered sugar
• 1 teaspoon vanilla extract

Lime zest can be adjusted for more or less flavor.

Substitutions & Swaps

• Unsalted butter can be replaced with coconut oil.
• Whole milk works well in place of regular milk.
• A dairy-free whipped topping can substitute heavy cream.
• Use bottled lime juice in a pinch, but fresh is best.

How to Make It

Follow these easy steps to create your delicious Key Lime Cake.

Preheat

Preheat your oven to 350°F (175°C). Grease and flour a 9×13 inch cake pan.

Cream

In a large bowl, cream together the butter and granulated sugar until light and fluffy.

Add Eggs

Add the eggs one at a time, mixing well after each addition.

Combine Liquids

Stir in the milk, lime juice, and lime zest until fully combined.

Mix Dry Ingredients

In another bowl, whisk together the flour, baking powder, baking soda, and salt. Gradually add this to the wet ingredients, mixing until just combined.

Pour Batter

Pour the batter into the prepared cake pan and smooth the top evenly.

Bake

Bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean.

Cool

Let the cake cool completely in the pan on a wire rack.

Whip Cream

For the frosting, whip the heavy cream to soft peaks. Gradually add the powdered sugar and vanilla extract, mixing until firm.

Frost

Frost the cooled cake with the lime whipped cream, and garnish with additional lime zest if desired. Enjoy your slice of sunshine!

How to Store It

Fridge: Store in an airtight container for up to 3 days.
Freezer: Yes, it freezes well for up to 2 months.
Reheat: Thaw overnight in the fridge, then enjoy chilled.

Tips for Best Results

• Ensure butter is at room temperature for easy creaming.
• Use fresh limes for the best flavor; the zest makes a difference.
• Don’t overmix the batter to keep the cake light and fluffy.
• Chill the whipped cream before whipping for better volume.

Serving Suggestions

• Serve with a dollop of whipped cream and extra lime zest.
• Pair with fresh fruit salad for a refreshing dessert.
• Enjoy alongside a cup of iced tea for a perfect afternoon treat.