Combine first 6 ingredients, blend well. Place chicken breast in sour cream mixture, turn to coat well and marinate, refrigate 8 hours or more. Roll chicken in seasoned crumbs.
Try to keep as much sour cream mixture around chicken as you can.
Refrigerate one hour.
Drizzle melted butter over chicken before baking at 325 for 60 minutes.
PERSONAL NOTE: (I just put the chicken in a baking dish with the marinade,after the 8 hour marinade time, sprinkled the crumbs over it drizzled the butter over it and baked it at 325 for 60 minutes) Refrigerate for one hour before cooking.