English Roast Chicken with all the Trimmings

• 2 chickens, and to stuff them you need:
• 60 g butter
• drop oil

Put 30 g of the butter, with a drop of oil, in a thick-bottomed pan and when melted add the onion and bacon. Fry together, over medium heat, for about 10 minutes or until onions are soft. Remove the bacon–onion mixture and in the same pan melt the remaining butter and cook the finely chopped mushro