Easy Key Lime Cake {Box Cake Mix and Cream Cheese Frosting}

A square piece of light green key lime cake with cream cheese icing with 2 half lime slices on top; served on a scalloped round white plate. On the plate is a sparkling dinner fork. Beside it is a textured cloth white napkin, and in the background is one fresh lime.

If you love the tangy sweetness of key lime pie, you’re going to adore this easy key lime cake! It’s a huge hit for special occasions like birthdays, holidays, or just a fun dessert at home. Indulge in this delightful

Key Lime Cake made from a convenient box mix, topped with creamy, luscious cream cheese icing will taste like a cake straight from the Florida Keys!

Perfect for any occasion, this zesty dessert combines the refreshing flavor of key limes with a smooth, rich frosting.

Easy to make and irresistibly delicious, it’s sure to be a hit at your next gathering! Let’s dive into how to make this flavorful cake step by step!

See our Cooking Resources page for helpful tips on How Many Tablespoons are in a Cup article to help you measure ingredients. Or satisfy your culinary curiosity with How Many Ounces Are In a Cup for that cup of orange juice.

Tablespoons and teaspoons next to a blue cup.
Tablespoons in a Cup

Ingredients

Two key ingredients in the recipe are yellow cake mix or white cake mix (Betty Crocker or Duncan Hines) and lime Jello. Any brand of box of cake will work fine for a flavorful cake. You will also need oil, orange juice and 5 eggs.

The cream cheese frosting has cream cheese, butter, confectioners’ sugar and vanilla. Allow an hour to prepare and bake the cake. After that it should cool before you frost it.

For that special touch, add slices of lime to the top of the cake.

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Key Lime Cake is Perfect for a Mint Green and Gold Cake

It’s easy to adapt the green key lime cake to go with a bridal shower cake, anniversary cake, birthday cake, or baby shower.

For a cake that needs to be mint green and gold, purchase edible gold leaves or edible gold flakes for designs for the occasion. Easy to do and elegant results!

Equipment Needed

To make this cake, you’ll need:

  • 1 large mixing bowl
  • A bowl of a stand mixer or a handheld mixer
  • 2 round cake pan, or a 9×13 pan for a lime sheet cake (or a bundt pan if you prefer)
  • A serrated knife (for leveling the cake layers)
  • Plastic wrap (to store the cake)

Cake Instructions:

  • Mix all cake ingredients including vegetable oil together for about 5 minutes at medium speed or high speed with a mixer until cake batter is well blended and smooth . Add a few drops of green food coloring for a deeper green color cake.
  • Pour batter into a greased 9×13 inch pan.
  • Bake at 350 degrees for about 28 to 35 minutes.
  • Cake is done when a toothpick inserted in center comes out clean.
  • Cool cake completely and top with frosting (instructions below).
  • Serve immediately. Refrigerate leftovers for 3 days.

Frosting Instructions:

  • Mix cream cheese and room temperature softened butter until creamy.
  • Add one cup sifted powdered sugar at a time until mixed completely and smooth.
  • Add vanilla flavoring and mix well.
  • Frost with a butter knife over the tops and sides of the cake. Swirl the top of the frosting with a knife for gentle waves and a spectacular look.

Serving Your Cake

Once your key lime cake is frosted and garnished with regular limes cut into half lime slices it’s ready to serve! Slice it with a serrated knife for neat pieces.

This cake is perfect balance of tart and sweet for citrus lovers and is sure to be a favorite dessert for everyone.

Storage Tips

If you have any leftovers (which might be unlikely!), store the cake in the refrigerator. Cover it with plastic wrap to keep it fresh.

The flavors will continue to develop, making it even tastier the next day!

Conclusion

This easy key lime cake is a delightful twist on traditional key lime pie. With its fresh lime flavor and creamy filling, it’s a dessert everyone will love. For a tropical variation add 1 cup coconut for a key lime coconut cake!

Whether you’re celebrating New Year, a birthday, or just want to enjoy a slice after dinner, this cake will bring smiles all around.

Try this simple recipe today and impress your friends and family with your baking skills!

Now go ahead and bake up this delicious key lime cake! Your taste buds will thank you!

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Key Lime cake slice with cream cheese frosting on a plate with a lime in background.
Print Recipe
5 from 6 votes

Key Lime Cake from Box Cake Mix

See how easy it is to make a key lime cake from box cake mix using Duncan Hines cake mix for the recipe.  Mix up some homemade cream cheese frosting from scratch for a rich topping. Yum!
Prep Time5 minutes
Cook Time30 minutes
Total Time35 minutes
Course: Dessert, Snack
Cuisine: American
Diet: Low Salt
Servings: 12 people
Calories: 534kcal
Cost: $15

Ingredients

Cake Directions

  • 1 Box Duncan Hines Lemon Supreme Cake Mix
  • 1 Box Lime Jello (Small Box)
  • 1 ½ Cup Oil (Vegetable Oil)
  • ½ Cup Orange Juice
  • 5 Large Eggs

Icing Directions

  • 1 8 oz. Cream Cheese (8 oz. package)
  • ¾ Stick Butter
  • 3 Cups Confectioners' Sugar
  • ½ tsp Vanilla

Instructions

Cake Instructions:

  • Mix all cake ingredients together for about 5 minutes until well blended and smooth .
  • Pour batter into a greased 9×13 inch pan.
  • Bake at 350 degrees for about 28 to 35 minutes.
  • Cake is done when a toothpick inserted in center comes out clean.
  • Cool cake completely and top with frosting (instructions below).
  • Serve immediately. Refrigerate leftovers for 3 days.

Frosting Instructions:

  • Mix cream cheese and room temperature softened butter until creamy.
  • Add one cup sifted confectioners' sugar at a time until mixed completely and smooth.
  • Add vanilla flavoring and mix well.

Notes

Calorie values are approximate and dependent upon ingredients used.
Perfect cake for wedding showers, baby showers, birthdays, Christmas dessert, St. Patrick’s Day dessert, potlucks and tailgate parties.  Beautiful mint green cake to go with color scheme for celebrations.  Add gold leaves or other decorations to make this dessert the centerpiece for the celebration.

Nutrition

Serving: 1slice | Calories: 534kcal

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1 Comment

  • Reply
    Darlene Farabee
    12/12/2021 at 12:28 pm

    5 stars
    Delicious Mint Green Cake perfect for wedding or baby showers, Christmas dessert, St. Patrick’s Day dessert and birthday cake. Easy and inexpensive to make!

  • 5 from 6 votes (5 ratings without comment)

    Leave a Reply

    Recipe Rating




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