Break chocolate into small pieces; add to water in saucepan. Stir until chocolate is melted; cool. Combine butter, sugar, and vanilla in large mixer bowl at high speed until fluffy. Beat in egg Yolks one at a time; blend well. Gradualy add melted chocolate. Stir together flour, baking soda, and salt; add alternately with buttermilk to chocolate mixture on low speed. Mix just until well-blended. Beat egg Whites unitl stiff; fold in. Pour into desired baking pans. Preheat oven; bake at 350* 2 9" pans 30-35 minutes 3 8" pans 25 minutes 13x9x2" pan 40-45 minutes. Coconut-Pecan Frosting: Blend 2/3 cup evaporated milk, 2/3 cup sugar, 1/4 cup butter and 1 egg(slightly beaten), in saucepan. Place over Medium heat; cook and stir until comes to full boil, boil and stir 2 minutes. Cool slightly; add 1 cup coconut, 3/4 cup chopped pecans, and 1/2 teaspoon vanilla. Cool until spreading consistency, stirring occasionally.

cake flour

2/3 c millk plus 2 teaspoon vinegar for the buttermilk