Margarita Cake with Key Lime Cream Cheese Frosting

Ingredients

• 1 package white cake mix , 15.25 ounce
• 3 large egg whites
• 1 can frozen margarita mix , 10 fluid ounce
• 2 tablespoons vegetable oil
• 2 tablespoons lime juice , divided
• 1 tablespoon grated lime zest
• 1 package cream cheese , 8 ounce
• 0.5 cups unsalted butter , softened
• 1 tablespoon grated lemon zest
• 5 cups confectioners' sugar

Instructions

1. 1

   Preheat the oven to 350 degrees F (175 degrees C). Grease and flour a 9x13-inch cake pan.

2. 2

   Beat together cake mix, egg whites, margarita mix, oil, 1 tablespoon lime juice, and lime zest in a large bowl until smooth and well combined. Pour batter into the prepared pan.

3. 3

   Bake in the preheated oven until a toothpick inserted into the center of cake shows moist crumbs, 30 to 35 minutes. Cake will be very moist. Cool completely in the pan, about 1 hour.

4. 4

   Beat together cream cheese and butter in another large bowl until light and fluffy. Stir in remaining 1 tablespoon lime juice and lemon zest. Beat in confectioners' sugar, one cup at a time, scraping the sides of the bowl thoroughly with a spatula after each addition. Spread frosting over cooled cake.