01 -
Place onion slices in a large bowl with buttermilk and soak for 10 minutes while preparing the coating mixture.
02 -
In a separate bowl, whisk together flour, breadcrumbs, kosher salt, black pepper, and garlic powder until evenly combined.
03 -
Pour vegetable oil into a dutch oven or deep fryer to a depth of 3 inches and heat over medium-high to 350°F (175°C).
04 -
Using tongs, remove onion rings from buttermilk and allow excess liquid to drip off before coating.
05 -
Dredge onion rings thoroughly in the flour and breadcrumb mixture, ensuring an even coating on both sides.
06 -
Carefully place coated onion rings in a single layer into hot oil, avoiding overcrowding, and fry for 2-3 minutes until golden brown and crisp.
07 -
Transfer fried onion rings to a wire rack or cookie sheet to cool and maintain crispiness; avoid using paper towels.