Whisk together the flour, baking powder, paprika, cayenne, and salt in a shallow dish.
Place the panko in a separate dish. Whisk together the eggs in a third shallow bowl.
Working one at a time, dip the pickles in the flour, followed by the egg. Repeat the process once. Dredge the pickles in the panko, pressing to adhere.
Place the dredged pickles on a wire rack.
Pour the oil to a depth of 2 inches in a Dutch oven and heat to 350°F.
Fry the pickles, in batches, in hot oil for 2 to 3 minutes or until golden brown and crispy. Drain on a cooling rack. Serve warm with ranch dressing.