Drain the dill pickles very well and pat them dry with paper towels. This is crucial for crispy chips.
In a shallow dish, whisk together the flour, cornstarch, cayenne pepper, paprika, garlic powder, and black pepper. Set aside.
In another shallow dish, whisk together the buttermilk and beaten eggs.
In a third shallow dish, place the panko breadcrumbs.
Working in batches, dip each pickle slice first into the flour mixture, ensuring it's fully coated. Shake off any excess.
Next, dip the floured pickle slice into the buttermilk mixture, letting any excess drip off.
Finally, dredge the pickle slice in the panko breadcrumbs, pressing gently to coat evenly.
Heat about 1 inch of vegetable oil in a large skillet over medium-high heat to 350°F (175°C).
Carefully add the coated pickle chips to the hot oil in a single layer, working in batches to avoid overcrowding the skillet. Fry for 2-3 minutes per side, until golden brown and crispy.
Remove the fried pickle chips with a slotted spoon and place them on a wire rack set over a baking sheet to drain any excess oil.
Serve immediately with your favorite dipping sauce.
Notes
For an even spicier kick, increase the amount of cayenne pepper. Serve with ranch dressing or a spicy aioli.