Coconut-Vanilla Bean Cake with Coconut Meringue Buttercream Frosting

Name: Coconut-Vanilla Bean Cake with Coconut Meringue Buttercream Frosting
Prep time: 1 h 30 min
Cook time: 35 min
Total time: 2 h 5 min
Cuisine: American
Ingredients: 2¼ cups cake flour; 1¼ cups granulated sugar; 2 teaspoons baking powder; ½ teaspoon kosher salt; ¾ cup unsalted butter, at room temperature, cut into 2-inch pieces; 6 egg whites; 1 cup coconut milk; 1 cup sweetened shredded coconut; 1 vanilla bean (split in half lengthwise); 1½ cups granulated sugar; 6 egg whites; 1½ cups unsalted butter, at room temperature, cut into 2-inch pieces; 1 teaspoon vanilla extract; ¼ teaspoon kosher salt; ⅔ cup coconut milk; 1 cup sweetened shredded coconut