Angel Food Cake - Alton Brown

Ingredients

• 1 3/4 cups sugar
• 1 cup cake flour, sifted
• 1/4 teaspoon salt
• 12 large egg whites, at room temperature
• 1/3 cup warm water, approximately 90ºF
• 1 1/2 teaspoons cream of tartar
• 1 teaspoon vanilla, orange, or lemon extract