For the chicken, wash legs, pat dry and bone. Cut meat and skin into 3 pieces.
For the vegetables, peel the onions and cut them into slices. Peel and roughly chop the garlic. Wash and halve the tomatoes. Wash the rosemary, shake dry and pluck the needles. Mix everything with salt, pepper and 3 tablespoons of oil. Spread on one half of a baking tray.
For the potatoes, grate parmesan finely and mix with crème fraîche. Drain the potatoes and spread on the other half of the baking tray. Spread the cheese cream and butter in pieces on top. Bake together in a hot oven (electric cooker: 225 °C/circulating air: 200 °C/gas: see manufacturer) for about 15 minutes.
For the chicken, heat 2 tablespoons of oil in a large frying pan. Fry the meat for about 10 minutes. Season with salt and pepper. Mix soy sauce and honey. At the end of the cooking time, spread on the skin side and fry briefly. Serve everything.