We don't do this often but every now and then we get to craving them. Ours were made with an egg batter. This recipe (with bread crumbs) is more like the old A & W onion rings which are seared into my taste memories. Must be eaten with root bear in a mug however and is not as adaptable to alternative flours.
1 egg
1 c. milk
1 c. flour
1 tsp. baking powder
1 1/2 tsp. sugar
1 tsp. salt
Beat egg and stir in milk. Add sifted dry ingredients and beat until smooth. Dip chicken or onion rings in batter. Fry in fat heated to 365 degrees. Cook meaty pieces first for 15 minutes. Fry backs and wings about 13 minutes. Drain on paper towels.
Starry Sky Journal 
Thanks for this. Onion rings are one of my favorite treats. Trip appreciated the root beer pairing, since he is our root beer connoisseur. For me, well, I like onion rings with a chocolate shake. Go figure.