Coconut Cake with 7-Minute Frosting - Alton Brown

Ingredients

• 3 cups cake flour, plus extra for pans
• 1 1/2 teaspoons baking powder
• 1 teaspoon kosher salt
• 1/2 cup fresh coconut milk
• 1/2 cup fresh coconut cream
• 16 tablespoons (2 sticks) unsalted butter, at room temperature
• 2 1/4 cups sugar
• 1 teaspoon coconut extract
• 4 large egg whites
• 1/3 cup coconut water
• 3 large egg whites
• 1 3/4 cups sugar
• 1/2 teaspoon cream of tartar
• 1/4 teaspoon kosher salt
• 1/2 teaspoon vanilla extract
• 8 to 10 ounces grated coconut