01 - Pat fish fillets completely dry with paper towels. Season both sides generously with salt and pepper.
02 - Arrange three shallow bowls: first with flour, second with beaten eggs whisked with milk, third with breadcrumbs combined with paprika and garlic powder.
03 - Dredge each fillet in flour, shaking off excess. Dip into egg mixture, allowing excess to drip off, then press firmly into breadcrumbs to coat completely.
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 without overcrowding, 3–4 minutes per side, until golden brown and cooked through. Transfer to a paper towel-lined plate to drain excess oil.
06 - Combine mayonnaise, chopped pickles, capers, lemon juice, Dijon mustard, and parsley in a bowl. Mix thoroughly and season with salt and pepper to taste.
07 - Serve hot fish fillets immediately with tartar sauce and fresh lemon wedges.