Key Lime Poke Cake

| Posted on:

April 6, 2026

Sliced Key Lime Poke Cake with lime garnish on a white plate

Key Lime Poke Cake is a refreshing dessert that perfectly balances sweet and tart flavors. This cake offers an easy way to enjoy a slice of summer, thanks to its vibrant lime flavor and creamy topping. Whenever you’re craving something bright and uplifting, this poke cake does just the trick.

Why cook this at home

Making Key Lime Poke Cake at home means you get to savor a fresh and flavorful dessert without the need for extensive baking skills. This recipe is straightforward, perfect for a quick treat or an impressive dessert to share. Even better, it caters to those with citrus cravings, combining the tanginess of lime with the sweetness of cake.

Preparing Key Lime Poke Cake

  • Start by preheating the oven and preparing your baking dish.
  • Combine the cake mix with other essential ingredients until smooth.
  • Bake the cake until it’s golden brown and a toothpick comes out clean.
  • Create holes in the baked cake for the lime filling to seep in.
  • Prepare the lime filling on the stove until slightly thickened.
  • Pour the lime mixture over the cake to add flavor.

Key ingredients

1 box yellow cake mix (15.25 oz)
1 cup water
½ cup vegetable oil
3 large eggs
1 package lime-flavored gelatin mix (3 oz)
1 cup key lime juice (bottled or fresh)
¾ cup white sugar
1 tablespoon cornstarch
2 tablespoons butter
1 tablespoon lime zest
Green food coloring (optional)
1 container whipped topping (8 oz, thawed)
Extra lime zest (for garnish)

Feel free to adjust the key lime juice based on your preferred tartness level or try a different yellow cake mix for added flavor.

How to prepare it

  1. Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish.
  2. In a large bowl, combine the cake mix, water, vegetable oil, and eggs. Beat for 2 minutes until smooth.
  3. Pour the batter into the prepared baking dish and bake for 25 to 30 minutes, until a toothpick comes out clean.
  4. Allow the cake to cool for 10 minutes, then poke holes all over with a wooden spoon or skewer.
  5. In a saucepan, whisk gelatin mix, key lime juice, sugar, and cornstarch over medium heat, stirring for 3 to 5 minutes until slightly thickened.
  6. Remove from heat, add butter and lime zest, and stir until smooth. Add food coloring if desired.
  7. Pour the warm lime filling over the cake, ensuring it seeps into the holes.

Key Lime Poke Cake

What to serve it with

Pair your Key Lime Poke Cake with fresh fruit like strawberries or a tropical fruit salad for a complete and refreshing dessert experience. A scoop of vanilla ice cream or a dollop of whipped cream can enhance the cake’s flavors, making for an even creamier treat. If you’re looking for complementary dessert ideas, consider serving it alongside a rich chocolate dessert, such as Blackberry Velvet Gothic Cake.

How to store and freeze

Store leftovers in the refrigerator, where they will remain fresh for 3 to 4 days. For longer storage, wrap portions tightly in plastic wrap or aluminum foil and freeze them for up to 2 months. When you’re ready to enjoy, thaw the cake in the refrigerator. Always ensure it reaches a safe temperature of 165°F if reheated.

Tips for best results

  • Ensure the cake is completely cooled before poking holes to prevent the filling from leaking out.
  • Adjust the sugar in the lime filling if you prefer a less sweet flavor.
  • Experiment with different citrus juices for a unique twist.
  • Use fresh lime zest for an extra burst of flavor.
  • Consider using clear gelatin for a more visually appealing filling.

Ways to change it up

To customize your Key Lime Poke Cake, try adding coconut milk to the batter for a tropical flair or incorporating crushed graham crackers into the topping for a nod to the classic key lime pie crust. If seeking a lower-calorie alternative, use a sugar substitute or a sugar-free cake mix. You could also explore using different flavors of gelatin to create a varied lime experience.

Your questions answered

How long does it take to prepare Key Lime Poke Cake?

The preparation and baking time totals about 40 to 50 minutes, while chilling in the refrigerator for at least 2 hours is necessary before serving.

Can I substitute the lime-flavored gelatin?

Yes, you can use a different flavor of gelatin, but it may alter the overall taste profile of the cake.

How can I make this recipe gluten-free?

Look for a gluten-free yellow cake mix and ensure the other ingredients are certified gluten-free to accommodate dietary needs.

Is there a dairy-free option for this recipe?

You can substitute the whipped topping with a non-dairy alternative and use a dairy-free oil instead of butter for a dairy-free version.

What should I do if my cake is too sweet?

If the cake turns out sweeter than expected, you can counteract that by serving it with unsweetened whipped cream or a tangy fruit compote.

This recipe is a fantastic way to showcase the lively flavor of limes. Trying it out will allow you to enjoy a refreshing dessert that can be adjusted to your personal tastes and preferences. Don’t hesitate to make it your own, and share the results with everyone you know.

Sliced Key Lime Poke Cake with lime garnish on a white plate

Key Lime Poke Cake

A refreshing dessert that perfectly balances sweet and tart flavors, this Key Lime Poke Cake is easy to make and ideal for citrus cravings.
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 50 minutes
Servings: 12 servings
Course: Dessert, Sweet Treat
Cuisine: American
Calories: 300

Ingredients
  

Cake Ingredients
  • 1 box yellow cake mix (15.25 oz) Can use a different yellow cake mix for added flavor.
  • 1 cup water
  • ½ cup vegetable oil
  • 3 large eggs
Lime Filling
  • 1 package lime-flavored gelatin mix (3 oz) Can be substituted with a different flavor of gelatin.
  • 1 cup key lime juice (bottled or fresh) Adjust based on preferred tartness level.
  • ¾ cup white sugar Adjust if a less sweet flavor is preferred.
  • 1 tablespoon cornstarch
  • 2 tablespoons butter Can substitute with a dairy-free oil.
  • 1 tablespoon lime zest Use fresh lime zest for more flavor.
  • Green food coloring (optional) For color enhancement.
Topping
  • 1 container whipped topping (8 oz, thawed) Can substitute with a non-dairy alternative.
  • Extra for garnish lime zest

Method
 

Preparation
  1. Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish.
  2. In a large bowl, combine the cake mix, water, vegetable oil, and eggs. Beat for 2 minutes until smooth.
  3. Pour the batter into the prepared baking dish and bake for 25 to 30 minutes, until a toothpick comes out clean.
  4. Allow the cake to cool for 10 minutes, then poke holes all over with a wooden spoon or skewer.
Lime Filling
  1. In a saucepan, whisk gelatin mix, key lime juice, sugar, and cornstarch over medium heat, stirring for 3 to 5 minutes until slightly thickened.
  2. Remove from heat, add butter and lime zest, and stir until smooth. Add food coloring if desired.
  3. Pour the warm lime filling over the cake, ensuring it seeps into the holes.
Serving
  1. Pair your Key Lime Poke Cake with fresh fruit like strawberries or a tropical fruit salad.
  2. A scoop of vanilla ice cream or a dollop of whipped cream enhances the flavors.

Nutrition

Serving: 1Calories: 300kcalCarbohydrates: 38gProtein: 3gFat: 15gSaturated Fat: 7gSodium: 200mgSugar: 20g

Notes

Store leftovers in the refrigerator for 3 to 4 days or freeze portions tightly wrapped for up to 2 months. Thaw in the refrigerator.

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