Onions - Peel and slice the onions into 1/2? thick rounds and separate into lots of rings.
Wet Mix - In a bowl next to the right of your onions, beat the egg and milk together. Add the yogurt and mix to loosen the yogurt. Whisk in the flour, cayenne pepper and seasoning until the mix forms a thick but smooth batter, something like a waffle or pancake batter.
Dry mix - In a food processor blitz a couple of slices of stale bread to make about 1/2 cup. Blitz the corn flakes into a coarse mix in the same way. Mix these together and place in a bowl to the right of your wet mix. (there is some method to the positioning of things, I haven’t got all strange and particular on you )
Baking tin - Spray a baking tin with cooking spray and place to the right of all your bowls. Ta-dah In front of you now stands your very own onion ring production line. Now your left hand shall be known as Mr wet hand, your right hand, Mrs dry hand. (not sure why I assigned them genders, but it seemed right at the time )
Production - Take each ring of onion in turn with Mr wet hand, mix around in the wet mix, take out and shake off the excess. Drop into the dry mix and with Mrs dry hand coat in the breadcrumb/corn flake mix. Still with dry hand carefully place onto you prepared baking sheet. Repeat for as much onion as you have.
Bake - When your baking trays are full finish by spraying everything lightly in cooking spray and place in an oven at 200ºC for about 30 mintues or until golden brown.