Lemon Buttermilk Sheet Cake Recipe - Food.com

Ingredients

• 2 1/2 cups cake flour
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 3/4 cup buttermilk, room temperature
• 1/4 cup fresh lemon juice
• 3 tablespoons grated fresh lemon zest (about 3 lemons)
• 1 teaspoon vanilla extract
• 1 3/4 cups sugar
• 12 tablespoons unsalted butter, softened (1 1/2 sticks)
• 3 large eggs, room temperature
• 1 large egg yolk, room temperature
• 3 cups powdered sugar
• 3 tablespoons fresh lemon juice
• 2 tablespoons buttermilk