Cut the fish into pieces, not too thin, for easy pan-frying. Season the fish with salt, black pepper, and cayenne pepper. Coat the fish with cornstarch. Set aside.: You will notice a faint whisper of the sea from the raw fish , and once seasoned the surface smells savory and slightly spicy from the cayenne pepper . The tactile step of dusting with cornstarch should leave a light, even veil on the flesh, which when heated will puff and seize into a crisp crust. This tactile coating is critical because it prevents the fish from sticking and seals surface moisture, preserving a tender interior. A common mistake is overcoating, which can make the crust gummy instead of crisp. Work with gentle taps to remove excess starch so you get a thin, even layer.
Prepare the garlic butter sauce by mixing all the ingredients together. Set aside.: When you combine melted butter , minced garlic , lemon juice , and chopped parsley , the scent should be bright and herbaceous with a warm nutty undertone from the butter. Mixing ahead lets the flavors meld slightly and keeps you from overcooking the garlic while frying. This step matters because adding a ready sauce at the end allows the hot pan fried crust to take on flavor immediately without prolonged heat. Avoid leaving minced garlic sitting in very hot butter for too long, as it will turn bitter if it burns.
Heat a skillet (preferably non-stick) over medium heat. Add the cooking oil, and once the oil is heated, pan-fry the fish in a single layer until both sides are crispy and golden brown.: You will hear a lively sizzle as the pieces hit the skillet, and a golden rim will appear within a few minutes along the edges. The oil serves to transfer heat evenly so the cornstarch seals quickly into a crunchy shell. Visual cues are key here; look for a uniform golden brown and a consistent sizzle. If the pan smokes excessively, reduce the heat a touch. A common error is crowding the pan, which drops the temperature and leads to steaming instead of crisping, so give each piece space.
Use a wooden spatula or tongs to gently flip the fish over. Try not to break the fish.: The sound of the flip is a softer sizzle as the second side meets the oil. Gentle handling preserves the flake structure of the interior while allowing the crust to finish crisping. Use a wide spatula or a pair of tongs and support the fillet when turning to avoid tearing. This technique matters because rough flipping can ruin the presentation and release juices that you want to keep inside. A frequent mistake is rushing the flip too early, which can cause sticking; wait until the edge lifts easily from the pan.
Remove the fish from the skillet and drain on paper towels. Toss the fish with the garlic butter sauce and serve immediately with lemon wedges.: After transferring to paper towels, you will notice a satisfying contrast between the steamy, tender interior and the now slightly glossy, butter kissed crust. Draining removes excess oil so the sauce adheres better and does not get diluted. When you toss the warm pieces with the prepared garlic butter sauce, the aroma deepens and the sauce glazes the surface, creating a shiny, flavorful coating. Finish with a squeeze of lemon to add zing and a shower of chopped parsley for color. A common oversight is letting the fish sit too long before saucing, which cools the crust and prevents the sauce from melting into the surface properly.