Keep the chicken in the refrigerator until its usage.Turn on the oven and unfold the roasting bag.Chop the onion and peel the garlic.Mix the onion with the peeled garlic, the herbs and pepper according to taste.Place the chicken on the cutting board and spread the spice mixture on all sides.Place the chicken in the roasting bag and add the remaining spice mix if necessary.Close the roasting bag with the clip and place it in the baking dish.Poke a few holes in the roasting bag with a fork.Place the dish in the middle of the oven for about 60 minutes.Then carefully cut open the roasting bag at the top (beware of the hot steam).
