In a word..."Fantastic!" We ate at one of these restaurants in the Florida panhandle. I happened to run across the recipe in an article and saved it. Hope you enjoy this fish recipe. The 1 hour in the prep time is how long you marinade the fish in the refrigerator.
Whisk 1/3 cup of the oil, lemon juice, salt and pepper in a small bowl. Stir in onion. Transfer marinade to a non-corrosive baking dish. Place fish in marinade, cover, and refrigerate for 1 hour.
Whisk eggs and milk in a bowl. Spread bread crumbs and flour on separate plates. Dip fish first in flour, then in egg mixture, then in bread crumbs.
Heat 2 Tbsp. of the butter and remaining 2 Tbsp. oil in a large skillet over medium heat. Add fish. Cook, turning once after 2-3 minutes until golden brown, depending on thickness. Transfer fish to a warm serving plate. Cover.
Melt remaining butter in skillet. Add garlic. Cook and stir until butter turns light brown. Pour browned butter over fish. Serve at once.
Note: I always serve my fish with lemon wedges and have Old Bay Seasoning on hand for those who enjoy it.