Heat oil in a deep-fat fryer or large saucepan to 190 degrees C.
Pour flour into a bowl. Beat eggs and milk together in a separate bowl. Pour breadcrumbs into a third bowl.
Remove cheese from the freezer and cut each round into 6 wedges. Roll each wedge in flour and dip into the egg-milk mixture. Press each wedge into breadcrumbs until evenly coated.
Fry each breaded wedge in the hot oil until breadcrumbs are browned, 2 to 3 minutes per side. Transfer fried cheese to a kitchen paper-lined plate using a slotted spoon. Serve cranberry sauce on the side.