Insert Pizza Stone and set Grill to medium high heat.
Slice onion into rings, and let them soak in buttermilk for about 15 minutes.
Crush crackers as fine as you can. I used a rolling pin.
Beat eggs in a bowl, then dip the onion slices in the eggs. Coat with cracker crumbs, and place on stone. Cook for 10 minutes and serve warm with choice of dip.
