Onion Straws

This recipe is from the Pioneer woman, and it's awesome
1 large onion
2 cups buttermilk
2 cups flour
1 scant tablespoon salt
Lots of black pepper
1/4 to 1/2 teaspoon Cayenne Pepper
Canola Oil
Directions:
Slice onion very thin. Place in a baking dish and cover with buttermilk for at least one hour.Combine dry ingredients and set aside.Heat oil to 375 degrees.Grab a handful of onions, throw into the flour mixture, tab to shake off excess, and PLUNGE into hot oil. Fry for a few minutes and remove as soon as golden brown.Repeat until onions are gone.