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Key Lime Coconut Marbled Pound Cake with Jello is an easy & refreshing cake with plenty of zippy lime and coconut flavor. This dessert recipe is perfect for summer parties, picnics, & potlucks! Each moist and tender bite of the pound cake is filled with wonderful flavor!

Key Lime Coconut Marbled Pound Cake


I’ve tested the Whipping Cream Pound CakeSour Cream Pound CakeCream Cheese Pound CakeAmaretto Pound Cake, and Chocolate Pound Cake. Let me just tell you they are all good! However, it’s time to give your traditional pound cake recipe a break and try this one. It’s full of bright citrus flavor that you’re sure to love. One bite and you’ll be reminded of that favorite beach destination!

Tropical flavors of lime and coconut naturally complement each other. They are phenomenal paired together in a pound cake. Furthermore, key lime can be hard to find in some areas especially during part of the year. Although they have slightly different flavor, you can subsitutue regular limes for the key limes.

key lime cake


I want to stress a few things when attempting my pound cake recipes, or any cake recipe in general. Review my post Baking Cakes: Problems and Tips.

  1. As with most baking, make sure your butter is at room temperature and soft. It will indent easily when mashed with your finger, but not be oily.
  2. Your eggs and other dairy ingredients also need to be at room temperature. They will incorporate much easier into the other ingredients at room temperature, making for a lighter, fluffier cake.
  3. Measure your flour correctly using the ‘spoon and level’ method. I wrote this post on how to measure flour correctly, you may want to refresh yourself if needed. Measuring flour incorrectly can result in as much as 150% more flour than is called for! #ThatsALot
  4. Use good quality ingredients. Read some of the differences in name-brand and store-bought ingredients here. Use real butter, not margarine. I use salted butter. You can use salted or unsalted butter depending on your personal preference.


  1. One of the most important tips is to Calibrate your oven.
  2. Cream butter and sugar together until light and fluffy. The color will a pale yellow. You must use real butter. Margarine will not have the same results.
  3. Next, mix in the room temperature eggs one at a time until they disappear into the batter.
  4. The next step is to add the room temperature milk alternately with the flour until mixed together and smooth. Room temperature ingredients are a must for a fluffy cake.
  5. Pour the batter into a well-greased baking pan and bake until cooked through.
Lime Coconut pound Cake

While you’re here, check out these recipes

  1. Trisha Yearwoods Lemon Pound Cake with Glaze 
  2. Classic Ricotta Pound Cake
  3. Fresh Blueberry Pound Cake 
  4. Peanut Butter Glazed Banana Pound Cake
  5. You can also find great recipes at my recipe index.
Key Lime Coconut Marbled Pound Cake

Key Lime Coconut Marbled Pound Cake with Jello

With two special flavors, Key Lime Coconut Marbled Pound Cake with Jello is also buttery and moist.
Author: Paula
4.97 from 30 votes
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Prep Time: 15 minutes
Cook Time: 1 hour 20 minutes
Total Time: 1 hour 35 minutes
Servings: 16 slices
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  • 3 cups all-purpose flour measured correctly
  • 1/8 teaspoon salt
  • 1/2 teaspoon baking powder
  • 1 cup butter at room temperature
  • 1/2 cup solid vegetable shortening
  • 3 cups granulated sugar
  • 6 large eggs at room temperature
  • 1 cup whole milk at room temperature
  • 1 3-ounce package lime flavored gelatin ex. Jello
  • 2 teaspoons coconut extract


  • 2 tablespoons butter melted
  • 1/2 teaspoon vanilla extract
  • 1 and 1/2 cup powdered sugar sifted



  • Preheat the oven to 325°F. Grease a (10-inch, 12 cup) bundt or tube pan with solid vegetable shortening and sprinkle with sugar (or you can use flour). Alternately, you can use Wilton Cake Release.
  • Sift flour, salt, and baking powder together.
  • Cream butter, shortening, and sugar with an electric mixer until light and fluffy. (For mixing, I use the whisk attachment on a KitchenAid Electric Mixer.)
  • Add eggs, one at a time, beating well after each addition.
  • Then add the milk mixture and flour alternately, beginning and ending with flour mixture. 
  • Pour half of the batter into another bowl and add the coconut extract. Stir to combine Then pour into the prepared tube pan.
  • Return the bowl with the batter to the mixer stand and add the lime gelatin. Mix until combined, but don't over mix. (You can also fold the gelatin in by hand.) Pour the lime batter over coconut batter in the tube pan and smooth the top.
  • Bake for 1 hour 20 minutes. 
  • The cake is done when no crumbs or dry crumbs remain on a wooden pick when inserted in the thickest part of the cake.
  • Cool in the pan on wire rack 20 minutes before inverting on a platter to cool completely. Make sure it’s cooled completely before covering. The cake will be good 4 or 5 days in an airtight container on the counter. After that, it will start drying out somewhat. 


  • Whisk glaze together and pour over cooled cake or, my recommendation, pour over individual slices when served.


Recipe from Paula All images and content are copyright protected. Please do not use my images without prior permission that includes copying the ingredient list or entire recipe and posting in the comments on Pinterest for Facebook. If you want to share this recipe, please simply link back to this post for the recipe.


Calories: 484kcal | Carbohydrates: 68g | Protein: 5g | Fat: 22g | Saturated Fat: 11g | Cholesterol: 106mg | Sodium: 167mg | Potassium: 87mg | Fiber: 1g | Sugar: 49g | Vitamin A: 524IU | Calcium: 40mg | Iron: 1mg
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  1. I’m trying to print out this recipe but site takes me to sign on to Pinterest.
    Are you able to send me the recipe asap. I want to get the ingredients tomorrow morning and make Wednesday.

  2. I have not made this one yet but all your other pound cakes I have made were wonderful Could you recommend another extract I could use I like coconut but some folks don’t.

  3. 5 stars
    I just have to say the key lime coconut pound cake has quickly become a favorite I have made this cake several times now and there is never a sliver left one by one I am going to make all of your pound so far I have made four and this cake is the one most asked for just a great cake so glade I found pmc

  4. 5 stars
    I made this for a ladies game night pot luck! Everyone loved it!! I like that it was a little crunchy on the bottom. I used the small bundt, cause that’s what I had. But it worked! Delicious! Would make again n again.

  5. 5 stars
    I I like to use the powdered coconut or the creamed coconut instead of the flavoring or in addition to. Try it 🤫😋😋😋

  6. I can’t locate the recipe itself for the key lime pound cake. How do I access it? I’ve tried everything to no avail.

4.97 from 30 votes (27 ratings without comment)

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