Step 5: Fry the Onion
- Heat oil in a deep fryer or heavy-bottomed pot to 375°F (190°C). The oil should be deep enough to fully submerge the onion.
- Using tongs or a slotted spoon, carefully lower the onion cut-side down into the oil.
- Fry for 6–8 minutes or until golden brown and crispy. Adjust cooking time depending on onion size.
- Remove the onion and drain on paper towels to remove excess oil.
Step 6: Make the Sauce
In a small bowl, combine mayonnaise, ketchup, horseradish, paprika, garlic powder, salt, and pepper. Mix until smooth, then refrigerate until serving.
Why Everyone Loves This Recipe
- Crispy outside, tender inside: A perfect contrast of textures with every bite.
- Restaurant-quality at home: Save money and impress guests with this copycat favorite.
- Fun and shareable: A showstopper appetizer that’s easy to pull apart petal by petal.
