Sift flour, cocoa, salt and baking powder. Set aside. Beat eggs and sugar until thick and creamy. Add oil and vanilla. Beat 5 minutes. Add chocolate. Place milk and butter in saucepan and stir until butter has melted and mixture comes to a boil. Add alternately to the egg mixture with sifted dry ingredients. Pour into 2 9 inch floured pans and bake at 350 for 15-20 minutes. Cool and fill and frost as desired. Filling instructions Beat all ingredients until spreading consistency. Decorate with white chocolate shavings.