Introduction

There’s something instantly uplifting about the bright, zesty flavor of key lime. This Key Lime Poke Cake brings that sunshine straight to your table with every cool, creamy bite. It’s the kind of dessert that feels refreshing yet indulgent, perfect for warm afternoons, family gatherings, or when you just want a sweet treat that isn’t too heavy.

What makes this cake special is how effortlessly it comes together. Using a simple boxed cake mix as the base, the magic happens when the tangy lime filling seeps into every poke, creating a moist, melt-in-your-mouth texture. It’s approachable for beginners but impressive enough to serve guests.

Finished with a fluffy whipped topping and a hint of citrus garnish, this dessert is a guaranteed hit. Whether you’re planning ahead for a celebration or need a family-friendly comfort food dessert, this easy recipe delivers big flavor with minimal effort.

 

Ingredients

Cake

• 1 box (15.25 oz) white cake mix
• Ingredients listed on the box (usually eggs and oil)

Filling

• 1 can (14 oz) sweetened condensed milk
• 1 ½ cups half-and-half or heavy cream, divided
• ½ cup lime juice
• Optional: green food coloring

Frosting & Garnish

• 1 container (12 oz) whipped vanilla frosting or 2–3 cups homemade whipped cream
• Optional: lime slices and lime zest

 

How to Make Key Lime Poke Cake

Bake the Cake
Prepare and bake the cake according to package directions in a 9×13-inch pan. Let it cool slightly.

Poke the Cake
Use the handle of a wooden spoon to poke holes evenly across the cake.

Add Cream
Slowly pour ½ cup of half-and-half or cream over the cake, allowing it to soak into the holes.

Make the Lime Filling
In a bowl, whisk sweetened condensed milk with ¾ cup cream. Quickly stir in lime juice until thickened.

Fill the Cake
Pour the lime mixture over the cake and gently spread it so it fills the holes.

Chill
Refrigerate for at least 1 hour to set and develop flavor.

Frost & Garnish
Spread whipped frosting or whipped cream on top. Garnish with lime zest or slices if desired.

 

Why You’ll Love This Recipe

• Bright, refreshing citrus flavor
• Ultra-moist texture from the poke method
• Easy dessert recipe with simple ingredients
• Perfect make-ahead option for gatherings
• Family-friendly comfort food everyone enjoys

 

Tips for Success

• Use fresh lime juice for the best flavor
• Poke plenty of holes so the filling spreads evenly
• Chill well before frosting for cleaner slices

Variations

• Use lemon juice for a lemon poke cake
• Add coconut flakes for a tropical twist
• Swap white cake mix for yellow cake

 

FAQs

1. Can I make this ahead of time?
   Yes, it tastes even better the next day.
2. Do I need key limes specifically?
   No, regular limes work perfectly.
3. Can I freeze it?
   Freezing isn’t recommended due to the creamy filling.
4. Is this very sweet?
   It’s balanced with a tangy lime finish.
5. Can I use homemade whipped cream?
   Absolutely—lightly sweetened works best.

How to Serve

Serve chilled with extra whipped cream or fresh fruit on the side for a light, refreshing dessert.

Make Ahead & Storage

• Make Ahead: Up to 24 hours in advance
• Refrigerate: Store covered for up to 4 days
• Best Texture: Serve well chilled

 

Conclusion

This Key Lime Poke Cake is proof that an easy dessert recipe can still feel special. With its creamy layers, citrusy brightness, and soft cake base, it’s the kind of treat that disappears fast and gets requested often. Simple, refreshing, and endlessly crowd-pleasing—this is one recipe you’ll want to keep on repeat.