Ingredients:

– 1 and ¾ cups cake flour
– 1 teaspoon baking powder
– ½ teaspoon baking soda
– ½ teaspoon salt
– ½ cup unsalted butter, room temperature
– 1 cup sugar
– 2 large eggs, room temperature
– 2 large egg whites, room temperature
– ⅓ cup fresh lemon juice
– ½ cup buttermilk
– 2 tablespoons lemon zest
– ½ teaspoon vanilla extract

For the frosting:
– 8 oz cream cheese, room temperature
– 4 oz unsalted butter, room temperature
– 3 cups powdered sugar
– 1 tablespoon fresh lemon juice
– 1 teaspoon lemon zest

Instructions: