1 whole large onion
2 cups buttermilk
2 cups all-purpose flour
1 tablespoon salt
1/2 to 1/2 teaspoon cayenne pepper
Oil for frying, between 1 to 2 quarts depending on the equipment in which you’re frying the onions
Salt and black pepper to taste

Slice onions very thin. Place in a baking dish, and cover with buttermilk. Soak onions for at least an hour.

Combine dry ingredients, and set aside.

Heat oil to 375 degrees Fahrenheit.

Place the onions in the seasoned flour mixture, and coat completely. Shake off any excess flour. Add the onions to the hot oil. Fry for a few minutes, and remove from the oil as they turn golden brown. Season to taste with salt and black pepper.