Too Simple Cream Of Chicken Noodle Soup

• 5 potatoes
• 2 chicken breasts bone in
• 2 chicken thighs bone in
• 1 box
• 1/2 bells seasoning
• 350 ml milk
• 85 gr butter
• 40 gr flour
• 60 ml chicken bouillon
• 12 gr onion (minced)