01 - Pat fish fillets dry with paper towels. Season both sides with salt and pepper.
02 - Set up three shallow bowls: one with flour, one with beaten eggs whisked with milk, and one with breadcrumbs mixed with paprika and garlic powder.
03 - Dredge each fillet in flour, shaking off excess. Dip into the egg mixture, then coat thoroughly with breadcrumbs.
04 - In a large skillet, heat 1/2 inch of vegetable oil over medium-high heat until shimmering (350°F).
05 - Fry fish in batches, 3-4 minutes per side, until golden brown and cooked through. Transfer to a paper towel-lined plate to drain.
06 - Combine mayonnaise, pickles, capers, lemon juice, Dijon mustard, and parsley in a bowl. Mix well and season with salt and pepper.
07 - Serve hot fish fillets with tartar sauce and lemon wedges.