Chicken In Avocado And Bacon Sauce

• 6 portions
• 1 onion
• 1 salt black pepper (freshly ground)
• 1 this bristish dish is such an unusual combination but everybody raves about it
• 1/2 bacon see note
• 120 ml cream (thick)
• 120 ml chicken stock
• 55 gr butter
• 10 gr ginger (fresh grated)
• 2 slices avocadoes peel