Wrap the edges of the foil and fix the seam well.
You can cook in a barbecue or on a grill over moderately hot coals. And also in the oven at T=180°C.
Cooking time is approximately 20-30 minutes. At the end of cooking, you can open the foil and lightly cover the dish with smoke (if cooking on coals) or turn on the top grill and brown (if cooking in the oven)