In a bowl place flour, salt, pepper, turmeric, garlic, onion powder and coriander.
Little by little stir in milk and water and mix until lumps free. If too thick add more water, if too runny add more flour.
Place panko in a bowl.
Dip mushrooms in the wet mixture, then bread them with panko.
Heat oil over high heat in a frying pan. Once hot fry the mushrooms about 3-4 minutes on each side.Then remove the excess oil on paper towels and add more salt if needed.