1-large onion, cut into thick rings
1-cup potato chips
Dash cayenne pepper
Preheat oven to 450 degrees.
Slice onion rings
Put potato chips and crackers in food processor and process to fine crumbs. Put in pan for coating.
Mix buttermilk, egg, salt and pepper real well, and then add enough flour to make a medium batter.
Take 2 baking sheets, place 3 tbls. Oil, coating well. Place in hot oven for 8 minutes while you coat the onion rings.
Dip onion rings in flour, then into the buttermilk mixture, then into the crumbs.
Place on two hot greased baking sheets and bake for 7 ½ minutes on 2 racks, then turn rings over and move top pan down and bottom pan on top. Bake for another 7 ½ minutes till crisp.
Remove from oven and lay rings on paper towels to drain.