Sweet And Sour Scampi

• 2 batches to avoid over crowding the (pan)
• 1 scallion (chopped)
• 1/4 orange jucie
• 250 gr pineapple (diced)
• 240 ml chicken stock (hot)
• 120 gr shrimp
• 60 ml vinegar (white)
• 45 ml dry wine (white)
• 45 ml water (cold)
• 45 gr melted butter