In a large pot, combine water enough to cover meat, onion, peppercorns, bay leaf and beef. Bring to a boil then lower heat to simmer until tender (about 2.5-3 hours). Set aside.
In a medium size saucepan, melt butter then add flour and mix to form a paste. Add Worcestershire sauce, soy sauce and 2 cups of beef stock. Mix well until lumps have dissolved. Add milk then season with salt and pepper. Add mushrooms then simmer. Set aside.
Heat sizzling plates. Arrange steaks on the sizzling plate and pour prepared sauce. Top with fried garlic.