Heat butter in a saucepan and saute onions and carrots for 2-3 minutes.
Add crushed garlic and vegetable stock and bring it to a boil.
Add the potato cubes.
Cover the pan and cook until potatoes are softened.
Mix all purpose flour in milk and add it to the pan.
Add the broccoli florets, red chill flakes and salt and cook for 8-10 minutes.
Add the cheese and cook until it melts.
Serve hot with bread.