Preheat oven to 500°. Let pickle slices stand on a paper towel until liquid is almost completely absorbed, about 15 minutes.
Meanwhile, in a shallow bowl, combine flour and salt. In another shallow bowl, whisk eggs, pickle juice, cayenne and garlic powder. Combine panko and dill in a third shallow bowl.
Dip pickles into flour mixture to coat both sides; shake off excess. Dip into egg mixture, then into crumb mixture, patting to help coating adhere. Transfer to a greased wire rack in a rimmed baking sheet.
Bake until golden brown and crispy, 20-25 minutes.
