Combine first 7 ingredients in large bowl, mix well, set aside. Melt butter and chocolate in a heavy saucepan over low heat. Add chocolate mixture, applesauce, eggs and walnuts to flour mixture. Pour in greased 9"x5"x3" loaf pan. Bake at 350ºF.  for 50 to 55 minutes until wooden toothpick comes out clean. Cool for 10 minutes.