Mix oil, sugar or honey, about 1/2 teaspoon salt, mustard, Worcester sauce, paprika and crushed chilli. Wash chicken legs, dab dry and divide each joint once. Spread the marinade all around the chicken parts. Peel and wash the potatoes and cut in half or quarters depending on size. Clean the leek, wash it thoroughly and cut into large pieces. Put the potatoes and leek into a roasting pan.
Place chicken legs on top. Roast in the preheated oven (electric cooker: 200 °C/circulating air: 175 °C/gas: level 3) for approx. 1 hour. Wash the chillies. After about 20 minutes gradually pour on hot stock and add chillies. Season legs and vegetables with salt and pepper