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An 8-inch square pan frosted Key lime cake recipe.
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Frosted Key Lime Snacking Cake

An easy recipe for a lime flavored cake with cream cheese frosting and coconut topping.
Course Dessert
Cuisine American
Keyword Key Lime Cake
Prep Time 20 minutes
Cook Time 25 minutes
Cooling Time 1 hour
Total Time 45 minutes
Servings 8
Author Anna
Cost 5

Ingredients

Cake

  • 1 ⅔ cups all-purpose flour (220 grams)
  • 1 ⅓ cups granulated sugar (265 grams)
  • ¾ teaspoon baking powder
  • ½ teaspoon baking soda
  • ⅜ teaspoon salt
  • 2 large eggs
  • ⅔ cup neutral oil OR use half unrefined coconut oil (130 grams)
  • ½ cup sour cream (120 grams)
  • 1 ½ tablespoons fresh lime zest
  • ¼ teaspoon vanilla
  • ⅓ cup fresh or bottled Key lime juice (75 grams)

Lime Glaze

  • ⅓ cup confectioners' sugar (40 grams)
  • 1-2 tablespoons fresh lime juice (14 to 28 grams)

Frosting

  • 4 oz cream cheese, softened (114 grams)
  • 2 oz salted butter, softened (56 grams)
  • 1 ¾ cups confectioners’ sugar, sifted (200 grams)
  • ½ teaspoon vanilla extract
  • 2 teaspoons fresh lime juice plus more to taste

Topping

  • ¼ cup shredded sweetened coconut, lightly toasted

Instructions

  • Preheat oven to 325°F Grease and lightly flour an 8-inch square metal pan.
  • Whisk together flour, sugar, baking powder, baking soda, and salt. Set aside.
  • In a mixing bowl, whisk the eggs and oil until thick and yellow, then gradually whisk in the sour cream, followed by the zest and vanilla.
  • Stir in the flour mixture until is is about halfway absorbed, then add the lime juice and mix until fully blended. If you are adding shredded coconut to the batter, go ahead and add that too.
  • Spread batter evenly in prepared pan and tap the pan against the counter lightly to bring air bubbles to the top. Bake at 325 for about 45 minutes (check at 40), or until a toothpick inserted in the center comes out clean.
  • While the cake is warm, mix together the lime glaze ingredients. Using a skewer or toothpick, poke about 18 holes in the cake, then pour the lime glaze over the warm cake letting it sink into the holes. Let cool completely on a wire rack.
  • Make frosting: Beat softened cream cheese and butter until smooth. Add powdered sugar, vanilla, and lime juice. Beat until fluffy, adding more sugar or lime juice to adjust sweetness and consistency.
  • Spread frosting evenly over cooled cake. Sprinkle toasted coconut on top.