01 - Set up three shallow bowls: place flour in the first bowl, whisk eggs with milk in the second bowl, and combine panko breadcrumbs, Parmesan cheese, oregano, garlic powder, salt, and black pepper in the third bowl.
02 - Pat mozzarella cubes thoroughly dry with paper towels to remove excess moisture, ensuring better coating adhesion.
03 - Dredge each mozzarella cube in flour, shaking off excess. Dip into egg mixture, then press firmly into breadcrumb mixture to coat completely. For extra-crispy crust, repeat the egg and breadcrumb coating steps.
04 - Arrange coated cheese balls on a baking tray and freeze for 15 minutes to firm up the coating and prevent cheese from melting too quickly during frying.
05 - Pour vegetable oil into a deep saucepan or fryer to a depth of 2-3 inches. Heat to 350°F over medium-high heat.
06 - Fry cheese balls in batches of 5-6 for 1-2 minutes until golden brown and crispy. Remove with a slotted spoon and drain on paper towels.
07 - Serve immediately while hot and gooey with marinara sauce or your preferred dipping accompaniment.