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