Flatten with the heel of your hand by pressing down on the breastbone until you hear it crack. Heat oven to 400 o . Repeat with another teaspoonful in the other side of the breast. Repeat with other hen. Brush both hens with the remaining butter making sure that the thighs are well covered.
Place hens skin side up in a roasting pan on the roasting rack and sprinkle with black pepper.
Roast for about 30 minutes, basting every 5 minutes with the pan drippings. Check for doneness by inserting a fork where the leg meets the thigh. If the juices run clear then the hens are done. Remove from the oven and cool for 5 - 10 minutes to let the juices settle. A weekend for two in a ritzy hotel here in Montreal, with a day of pampering in their beauty salon.