Corn& Potato Chowder

• 1 bay leaf
• 300 gr potatoes-cubed (red)
• 240 ml skim milk
• 240 ml vegetable broth
• 190 gr carrot (sliced)
• 150 gr corn kernels
• 120 gr onion (chopped)
• 10 ml sherry
• 5 ml oil
• 2 slices stalks celery (sliced)