Houlihan's Baked Potato Soup

• 1 instant potato flakes
• 1,200 ml water
• 425 gr baking potatoes
• 240 ml milk
• 240 ml cream (heavy)
• 240 gr onion (yellow diced)
• 110 gr butter
• 40 gr flour
• 36 gr low sodium chicken base
• 2 ml tabasco sauce