Line a plate with paper towels and set aside.
Heat canola oil in a large frying pan or saucepan.
In a shallow dish, combine flour, salt, pepper and Old Bay Seasoning; whisk to combine.
Place milk in a small bowl.
Start by dipping Onion Rings in flour-mixture then in milk, and back into flour-mixture.
Carefully drop several onion rings at a time in hot oil. DO NOT crowd the pan. Cook the rings in batches.
Cook for 3 minutes; flip and continue to cook for 1 more minute, or until golden brown.
Using a slotted spoon, remove Onion Rings from oil and transfer to the paper towel-lined plate to drain.
Serve with Ketchup, Ranch Dressing, Honey Mustard, or any other favorite condiment.