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Instructions:
- Separate the onion slices into thick rings and set them aside.
- In a large bowl, combine the flour, cornstarch, salt, black pepper, paprika, and garlic powder.
- Pour the buttermilk into a separate bowl.
- Dip each onion ring into the buttermilk, then dredge thoroughly in the seasoned flour mixture.
- Heat the vegetable oil in a deep skillet or heavy pot to 350°F (175°C).
- Fry the onion rings in batches for 3 to 4 minutes per side, until deeply golden and crispy.
- Remove the onion rings with a slotted spoon and drain on paper towels. Season lightly with salt while hot.
- In a small bowl, whisk together all of the horseradish dip ingredients until smooth and creamy.
- Serve the onion rings hot with the horseradish dip on the side.
Variations :
- Add a pinch of cayenne pepper to the flour mixture for extra heat.
- Swap buttermilk for beer for a slightly lighter, airy crust.
- Use red onions for a sharper, more robust flavor.
Tips :
- Keep the oil temperature steady to ensure even frying and maximum crispiness.
- Do not overcrowd the pan, as this lowers the oil temperature.
- For extra steakhouse crunch, double-dip the onion rings in buttermilk and flour before frying.