Please read about Cooking en Papillote. The seasonings can be varied to your taste; for a packet that serves as a whole meal, see Chicken Hobo Packs.
Position a rack in the center of the oven. Preheat the oven to 450°F.
Trim any fat around the edges of:
Season both sides with:
Tear off four 18-inch pieces of heavy-duty foil or parchment paper. Lightly oil one side of each. Lay one chicken breast on the oiled side. Divide among the breasts:
Drizzle over the chicken:
Fold the foil or parchment over the chicken, then crimp the edges to seal tightly. Place on a baking sheet and bake for 20 minutes. Remove from the oven and let stand for 5 minutes. The internal temperature should reach 165°F. To avoid being burned by steam, open carefully.