Use any kind of onion you like (we prefer purple ones). Cut into slices and make into rings.
Use pork rinds that have been ground up in food processor until a fine "flour-like" consistency.
Sprinkle Parmesan cheese in with pork rinds.
Beat one egg and add about l/2 cup mayonnaise to make a dipping mixture.
Dip onions in mixture, place on wax paper and bake from 20 to 30 minutes at 350.
photo from www.ibreatheimhungry.com
We do not have a photo of the ones he made; ate 'um.