Mushroom Cashew Bisque

• 1 bay leaf
• 1,400 ml vegetable broth (hot)
• 350 gr mushrooms
• 130 gr carrots (diced)
• 120 ml water
• 120 gr onions (diced)
• 60 gr cashews (raw)
• 50 gr celery (diced)
• 45 ml soy sauce
• 40 gr unbleached flour (white)