An easy and delicious chicken dish with a few elegant touches here and there! The chicken is jointed (cut into pieces), sauteed and then grilled like a potato gratin in a sauce of cognac, wine, mustard and cheese. Serve this with a crisp fresh salad and pasta, or with seasonal steamed vegetables and rice. You can omit the cognac and wine and use apple juice if you wish - the taste will not be as sophisticated, deep or intense, but the chicken could be served to children this way! An ideal dinner party recipe or Valentine's day meal for two - just reduce the ingredients, or make the full amount and freeze the remaining portions. Recommended wine: Saumur Champigny.