Crispy Fried Onions
Thin-sliced onions fried to a shattering crunch, golden and sweet beneath the crust.
Dietary
Vegetarian, Pescatarian, Nut free, Halal, Kosher
Allergens
Dairy, Wheat
These fried onions turn a simple yellow onion into a crisp, golden topping with a deep savory-sweet flavor from a buttermilk soak and light flour dredge. Scatter them over casseroles, burgers, or green beans for a crunchy finish, or snack on them straight from the paper towel-lined plate.
Ingredients
- 2 large yellow onions, thinly sliced into rings
- 1 cup buttermilk
- 1 cup all-purpose flour
- 1/2 cup cornstarch
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/4 teaspoon cayenne pepper
- 4 cups vegetable oil, for frying
Method
-
Slice the onions into thin, even rings, about 1/8 inch thick, separating them with your fingers.
-
Place the onion rings in a bowl, pour the buttermilk over them, and let soak for 15 minutes to soften and season.
-
In a shallow dish, whisk together the flour, cornstarch, salt, pepper, and cayenne.
-
Pour oil into a deep skillet or saucepan to a depth of about 1 inch and heat over medium-high heat to 350°F.
-
Lift a handful of onions from the buttermilk, shake off excess, and dredge thoroughly in the flour mixture, pressing to coat.
-
Shake off excess flour and carefully lower the coated onions into the hot oil in a single layer, frying in batches to avoid crowding.
-
Fry each batch, stirring occasionally, until deep golden brown and crisp, about 3 to 4 minutes.
-
Remove with a slotted spoon or spider and drain on a paper towel-lined plate or wire rack.
-
Repeat dredging and frying with the remaining onions, letting the oil return to 350°F between batches.
-
Season the hot fried onions lightly with additional salt, then let cool slightly before serving to crisp further.
Rate this recipe

Crispy Fried Onions
These fried onions turn a simple yellow onion into a crisp, golden topping with a deep savory-sweet flavor from a buttermilk soak and light flour dredge. Scatter them over casseroles, burgers, or green beans for a crunchy finish, or snack on them straight from the paper towel-lined plate.
45 min 8 servings 220 cal
Ingredients
- 2 large yellow onions, thinly sliced into rings
- 1 cup buttermilk
- 1 cup all-purpose flour
- 1/2 cup cornstarch
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/4 teaspoon cayenne pepper
- 4 cups vegetable oil, for frying

Method
- 1
Slice the onions into thin, even rings, about 1/8 inch thick, separating them with your fingers.
- 2
Place the onion rings in a bowl, pour the buttermilk over them, and let soak for 15 minutes to soften and season.
- 3
In a shallow dish, whisk together the flour, cornstarch, salt, pepper, and cayenne.
- 4
Pour oil into a deep skillet or saucepan to a depth of about 1 inch and heat over medium-high heat to 350°F.
- 5
Lift a handful of onions from the buttermilk, shake off excess, and dredge thoroughly in the flour mixture, pressing to coat.
- 6
Shake off excess flour and carefully lower the coated onions into the hot oil in a single layer, frying in batches to avoid crowding.
- 7
Fry each batch, stirring occasionally, until deep golden brown and crisp, about 3 to 4 minutes.
- 8
Remove with a slotted spoon or spider and drain on a paper towel-lined plate or wire rack.
- 9
Repeat dredging and frying with the remaining onions, letting the oil return to 350°F between batches.
- 10
Season the hot fried onions lightly with additional salt, then let cool slightly before serving to crisp further.