Chicken breasts supreme

1. Place chicken breasts, skin-side-down in a shallow, heat- resistant, non-metallic, 10-inch baking dish.
2. Heat, uncovered, in microwave oven 10 minutes.
3. Set chicken aside.
4. In a deep, heat-resistant, non-metallic casserole, melt 2 table-spoons butter in microwave oven 15 seconds.
5. Add onion to melted butter and heat, uncovered, in microwave oven 2 ½ minutes or until onion is tender.
6. Add soup, milk and seasonings to onions.
7. Stir well to combine all ingredients.
8. Heat, uncovered, in microwave oven 3 minutes.
9. Pour sauce over chicken and heat, covered, 6 minutes in microwave oven or until chicken is tender