01 - Arrange three shallow bowls: one with flour, one with beaten eggs and milk, and one with breadcrumbs mixed with garlic powder, onion powder, paprika, salt, and pepper.
02 - Pat the cleaned mushrooms thoroughly dry with paper towels to ensure the breading adheres properly.
03 - Dredge each mushroom in the flour, shaking off any excess to create a light, even coating.
04 - Dip the floured mushrooms into the egg and milk mixture, coating evenly on all sides.
05 - Roll each mushroom in the seasoned breadcrumb mixture, pressing gently to help the crumbs adhere firmly.
06 - Heat the vegetable oil in a deep fryer or heavy-bottomed pot to 350°F (180°C).
07 - Fry the breaded mushrooms in batches for 3 to 4 minutes, turning occasionally, until golden brown and crispy.
08 - Remove the fried mushrooms with a slotted spoon and drain on paper towels to remove excess oil.
09 - Sprinkle with freshly chopped parsley if desired and serve hot alongside your favorite dipping sauce.