Preheat oven to 425 degrees. Place all dry ingredients in large mixing bowl. Make a well in center of dry ingredients. Add buttermilk and melted butter, mixing from center out. Blend all ingredients (do not beat). Turn on lightly floured board and knead 10 times into round loaf. Place on greased pan and X in center with sharp knife. Bake 10 minutes at 425 degrees. Reduce to 375 degrees; bake additional 45 minutes or until toothpick comes out clean.