Easy Key Lime Cake: A Citrus Delight

Indulge your taste buds with the tantalizing flavors of our Easy Key Lime Cake. This delectable dessert is not only a treat for the palate but also a breeze to make. Whether you’re a seasoned baker or a kitchen novice, this recipe promises a delightful culinary adventure. Let’s dive into the history, ingredients, and step-by-step guide to crafting this citrusy masterpiece.

History and Origins

The origins of Key Lime Cake can be traced back to the tropical regions where key limes are abundant. These small, flavorful limes add a unique twist to traditional cake recipes. The sweet and tangy profile of this cake has made it a favorite among dessert enthusiasts, especially during warm seasons.

Tools, People, and Cooking Time

Tools Needed:

  • Three 8-inch cake pans
  • Large mixing bowl
  • Electric mixer
  • Kitchen scale
  • Mason jar (optional)
  • Measuring cups and spoons

Number of People:

This recipe serves approximately 12 people.

Cooking Time:

Bake the cake according to the instructions on the box, typically around 25-30 minutes. Allow additional time for cooling.

Ingredients and Substitutions


  • 1 (18.25 ounce) package lemon cake mix
  • 1 ⅓ cups vegetable oil
  • 4 large eggs
  • 1 (3 ounce) package lime-flavored Jell-O® mix
  • ¾ cup orange juice


  • ½ cup butter, room temperature
  • 1 (8 ounce) package cream cheese, room temperature
  • 2 – 3 tablespoons fresh lime juice
  • 4 cups confectioners’ sugar

Ingredient Substitutions:

Cake Mix:

  • If unable to find 18.25 ounces, keep a spare box of cake mix in a mason jar.
  • Use all-purpose flour as a substitute: 6 tablespoons for 16.5 oz, 11 tablespoons for 15.25 oz (add ¼ teaspoon baking powder).

Make Your Mix:

  • 1 1/2 cups all-purpose flour
  • 1 cup sugar
  • 2 teaspoons baking powder
  • 1/4 teaspoon baking soda


  1. Preparation:
    • Preheat your oven according to the cake mix instructions.
    • Grease the cake pans and set aside.
  2. Combine Ingredients:
    • In a large mixing bowl, combine the lemon cake mix, lime-flavored Jell-O® mix, vegetable oil, eggs, and orange juice.
    • Mix until well combined.
  3. Bake:
    • Pour the batter into the prepared cake pans.
    • Follow the baking instructions on the cake mix box.
    • Allow the cakes to cool completely.
  4. Prepare Frosting:
    • In a separate bowl, beat butter and cream cheese until light and fluffy.
    • Add fresh lime juice and confectioners’ sugar.
    • Mix until smooth.
  5. Frost the Cake:
    • Once the cakes are cooled, frost each layer evenly.
    • Stack the layers to form a delicious cake.

Top 4 Mistakes and How to Avoid Them

1. Incorrect Cake Mix Quantity

  • Solution: Keep a spare box of cake mix in a mason jar for accurate measurements.

2. No Spare Cake Mix

  • Solution: Use all-purpose flour as a substitute. Adjust quantities based on the cake mix’s weight.

3. Inadequate Mixing of Frosting

  • Solution: Ensure butter and cream cheese are thoroughly beaten for a light and fluffy texture.

4. Rushing the Cooling Process

  • Solution: Patience is key. Allow the cakes to cool completely before frosting.

FAQ – 5 Questions about Key Lime Cake

Q1: Can I use a different cake mix flavor?

  • A1: While the lemon cake mix complements the key lime flavor, you can experiment with other flavors for a unique twist.

Q2: Can I freeze the cake for later?

  • A2: Yes, wrap the unfrosted cake layers tightly in plastic wrap and freeze. Thaw before frosting.

Q3: How long does the frosting stay fresh?

  • A3: Refrigerate the cake to maintain the frosting’s freshness for up to one week.

Q4: Can I use bottled lime juice instead of fresh?

  • A4: Fresh lime juice is recommended for the best flavor, but bottled juice can be a substitute.

Q5: Can I make cupcakes instead of a layered cake?

  • A5: Certainly! Adjust the baking time accordingly for delightful key lime cupcakes.


In conclusion, our Easy Key Lime Cake is a delightful dessert that combines the freshness of citrus with the sweetness of cake. Armed with the right tools, ingredients, and knowledge, you can effortlessly create this culinary masterpiece. Remember to avoid common mistakes and feel free to experiment with flavors to make this recipe your own. Happy baking!

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