Clementine Meringue Cake With Rosemary Recipe

Ingredients

• nonstick cooking spray
• 3 1/2 cups cake flour
• 1 tablespoon plus 1 teaspoon baking powder
• 1/2 teaspoon salt
• 1 cup (2 sticks) unsalted butter
• 1 2/3 cup sugar
• 1 tablespoon clementine zest
• 1/2 teaspoon pure vanilla extract
• 1 1/2 tablespoons clementine juice
• 1 cup milk
• 8 large egg whites room temperature
• pinch of cream of tartar
• pinch of salt
• 1/3 cup superfine sugar
• 1 cup unsalted butter
• 6 cups powdered sugar
• 2 tablespoons clementine juice
• 1 teaspoon clementine zest
• 1 teaspoon fresh rosemary
• 1 clementine sliced
• 1 sprig rosemary