Cider Beef Stew

• 2 carrots (cut into pieces)
• 1 celery rib in (cut pieces)
• 1 potato
• 1 onion (sliced)
• 450 gr beef stew meat cubed
• 250 gr apple cider
• 120 ml water
• 30 ml oil
• 24 gr flour
• 16 ml vinegar