Dip chicken in ½ cup buttermilk, and dredge in flour.
Arrange chicken, breast side down, in baking dish.
Bake at 425° for 25 minutes.
Turn chicken, and bake 10 more minutes.
Stir together remaining 1 cup buttermilk and soup; pour over chicken, and bake 10 more minutes, shielding chicken with aluminum foil to prevent excessive browning, if necessary.
Drizzle gravy in dish over chicken when serving.
Notes / Tips / Wine Advice:
*4 skinned and boned chicken breast halves may be substituted for 4 bone-in chicken breast halves, if desired. Bake chicken at 425° for 15 minutes. Turn and bake 10 more minutes.