Mix the mayonnaise and mustard in one bowl; mix all the spices and bread crumbs in another. If you are using defrosted chicken, cut the chicken breasts into serving-sized pieces. If you are using frozen breasts, you can cut them into smaller portions after baking. Dip the chicken pieces into the mayonaise/mustard mixture and then coat with the spiced crumb mixture. Put the pieces very close together in a greased baking pan, and bake for 30-35 (40-45 for frozen pieces) minutes at 375°F., testing for doneness with a sharp knife (look for white color throughout). If you plan to hold this dish for a long time, to avoid dryness, use about 1 1/2 times the mayonaise and
mustard before coating the chicken. Serves 3-4.