For the Onion:

• 1 extra-large sweet onion (4-5 inches diameter)
• Vegetable or peanut oil for frying

For the Seasoned Coating:

• 2 cups all-purpose flour
• 2 tablespoons paprika
• 2 teaspoons garlic powder
• 2 teaspoons onion powder
• 1 teaspoon cayenne pepper
• 1 teaspoon black pepper
• 1 teaspoon dried oregano
• 1/2 teaspoon dried thyme
• 1/2 teaspoon ground cumin
• 2 teaspoons salt
• 1/4 teaspoon white pepper

For the Egg Wash:

• 2 large eggs
• 1 cup whole milk
• 1/4 teaspoon salt

For the Dipping Sauce:

• 1 cup mayonnaise
• 1/4 cup sour cream
• 2 tablespoons ketchup
• 2 tablespoons prepared horseradish
• 1 teaspoon paprika
• 1/2 teaspoon garlic powder
• 1/2 teaspoon dried oregano
• 1/4 teaspoon cayenne pepper
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper
• Pinch of sugar