Key Lime Sheet Cake - The BakerMama

Ingredients

• Cake:
• 2 cups all-purpose flour
• 1 (3 ounce) package lime-flavored gelatin
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 1-1/2 cups granulated sugar
• 1/2 cup (1 stick) unsalted butter, softened
• 3 large eggs
• 1 cup buttermilk
• 2 tablespoons lime zest (about 4 limes)
• 1/4 cup fresh lime juice (from about 2 limes)
• Icing:
• 1/2 cup (1 stick) unsalted butter, room temperature
• 1 (8 ounce) package cream cheese, room temperature
• 3-1/2 cups powdered sugar
• zest and juice of 1 lime
• 1/2 cup crushed graham crackers