Coconut Cupcakes with Coconut-Cream Cheese Frosting

INGREDIENTS

• 3/4 cup butter, softened
• 1 1/2 cups sugar
• 6 large egg whites
• 1 teaspoon vanilla extract
• 1/2 teaspoon coconut extract
• 3 cups cake flour
• 1 tablespoon baking powder
• 1/4 teaspoon salt
• 1 cup plus 3 tablespoons coconut milk, divided
• 1 tablespoon amaretto liqueur
• Coconut-Cream Cheese Frosting
• 1 1/2 cups large-flake unsweetened coconut, toasted