Heat oil to 375. Mix flour, baking powder, garlic powder, salt and paprika and dust each slice of onion with it and set on a plate.

Now beat the egg in a separate bowl and add the milk to the bowl with the flour and spices.

Dip the onion rings into the milk/flour batter and then into the fish breading or breadcrumb. Fry 2-3 minutes until golden brown and crispy.