01 -
Turn the oven on to 400°F (200°C). Lay some parchment paper on your baking tray and add a light coat of olive oil to stop the food from sticking.
02 -
Combine the flour, pepper, and salt in a big bowl. In a separate one, whisk the eggs and milk together until they blend nicely.
03 -
Take each onion slice and dip it into the flour mix, then into the egg and milk mix, and finish by coating it in a blend of breadcrumbs, Parmesan, and cheddar cheese.
04 -
Place the coated onions in one layer on the baking tray. Add a drizzle of olive oil for extra crispiness and bake for 20 to 25 minutes, or until golden and crunchy.
05 -
Sprinkle chopped parsley on the crisp onion slices after removing them from the oven. Serve warm and enjoy the cheesy, crunchy treat.