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4.04 from 26 votes

Key Lime Cake

This perfectly flavored lime cake topped with a creamy lime frosting is just the right combo of sweet and tart. Every bite bursts with fresh lime flavor that just feels like summertime!
Prep Time10 mins
Cook Time20 mins
Total Time30 mins
Course: Dessert
Cuisine: American
Keyword: cake, fruit, spring, summer
Servings: 1 slice
Calories: 250kcal


Cake Ingredients

  • 1 box lemon cake mix
  • 1 box lime jello (3 oz size)
  • oil amount according to cake mix directions
  • eggs amount according to cake mix directions
  • water half of the amount in cake mix directions
  • lime juice to replace the other half of water amount in cake mix directions

Frosting Ingredients

  • 1 container of vanilla frosting
  • 1 1/2 cup powder sugar
  • 1/4 c lime juice


  • Mix the lemon cake mix according to package directions, EXCEPT substitute half of the water with lime juice, (i.e. if you need 1 1/2 cups of water, use 3/4 cup water and 3/4 cup lime juice) and add the box of lime jello.
  • Prepare your pan(s) with cooking spray, or by using our wax paper technique found above.
  • Cook according to package directions.
  • While cake is cooking, prepare the frosting by placing the powder sugar, premade frosting, and lime juice in a bowl. Beat until smooth.
  • Once the cake has cooled, remove from pans and take off wax paper if used.
  • Frost your cake, and enjoy!


Calories: 250kcal