01 - Pat mushrooms completely dry with paper towels. If mushrooms are large, halve or quarter them to create bite-size pieces for even cooking.
02 - Arrange three shallow bowls: first with flour mixed with garlic powder, paprika, salt, and black pepper; second with beaten eggs and milk whisked together; third with breadcrumbs.
03 - Dredge each mushroom piece in seasoned flour, shaking off excess. Dip into egg mixture, allowing excess to drip off. Press firmly into breadcrumbs to coat thoroughly. Place on baking sheet or tray.
04 - Pour 1 inch of vegetable oil into deep skillet or Dutch oven. Heat to 350°F over medium-high heat. Oil is ready when small bubbles form around handle of wooden spoon.
05 - Fry mushrooms in batches, being careful not to overcrowd pan. Cook for 3–5 minutes, turning occasionally, until golden brown and crispy. Remove with slotted spoon and drain on paper towels.
06 - In saucepan over medium heat, melt butter. Sprinkle in flour and cook, stirring constantly, for 1–2 minutes until mixture bubbles and turns light golden color.
07 - Slowly whisk in milk, a little at a time, until smooth. Bring to simmer while whisking. Add salt, pepper, garlic powder, and cayenne. Continue whisking for 3–5 minutes until thickened. Taste and adjust seasoning.
08 - Transfer fried mushrooms to serving platter. Ladle warm gravy generously over top. Serve immediately while crispy.