Instructions

  1. Preheat oven to 350°F.
  2. Melt chocolate in microwave (30 seconds at a time) or in a double boiler.
  3. Grease two 9-inch cake pans.
  4. Sift together flour, baking soda, and salt.
  5. In a separate larger bowl of an electric mixer, beat butter until light.
  6. Add sugar and continue beating.
  7. Add eggs one at a time, scraping bowl well after each addition.
  8. Beat on high speed for 5 minutes.
  9. Add vanilla and chocolate.
  10. Stir in sifted dry ingredients alternately with sour cream (starting and ending with flour, i.e. add some flour, then some sour cream, then more flour -- etc).
  11. Stir in boiling water.
  12. Pour into pans.
  13. Bake for 35 minutes (start testing for doneness after about 27 minutes; if there are a few moist crumbs on the tester, it's ok to take it out).
  14. Cool in pans for 5 to 10 minutes. Remove to a rack and let cool completely before icing.
  15. To make the frosting: Mix all the frosting ingredients together in mixer. Once it is well mixed, frost the cake generously.
  16. Enjoy :-D.