Golden, crunchy onion rings dunked in cool ranch. This high calorie snack is the guilty pleasure you don't actually feel guilty about.
Slice the onions into 1/2-inch thick rings, separating them gently.
Mix flour, salt, black pepper, and garlic powder in a shallow bowl. Set up egg and buttermilk mixture in another bowl, and panko breadcrumbs in a third.
Heat vegetable oil in a deep pan over medium-high heat to 375°F and maintain temperature throughout frying.
Dip onion rings first in flour mixture, then in egg-buttermilk mixture, and finally in panko, pressing lightly for an even coating.
Fry coated onion rings in batches for 2–3 minutes per side, until golden and crisp. Drain on paper towels and serve immediately with ranch dressing.