Scalloped Ham And Potatoes

• 1 pkt vegetable broth powder
• 1,400 ml water
• 850 gr all-purpose potatoes
• 350 ml milk
• 325 gr ham (diced)
• 60 gr swiss cheese (shredded)
• 40 gr all purpose flour
• 2 gr thyme crumbled (dried)
• 1 gr salt
• 1 gr pepper