In a light-colored saucepan, melt 60 grams (4 tablespoons) of unsalted butter over medium heat. Stir occasionally while the butter begins to foam, watching closely as it transforms to a golden brown color, which takes about 3 minutes. The aroma should shift to a delightful nutty scent. Once browned, remove the pan from heat and immediately stir in 1 tablespoon of fresh lemon juice, seasoning with salt and finely ground pepper to taste. Set this luscious sauce aside while you prepare the fish.

While the lemon butter sauce cools slightly, take 2 pieces of thin white fish fillets (about 120-150g / 4-5oz each) and pat them dry with paper towels. This crucial step helps achieve a crispy crust. Season both sides generously with salt and pepper, then lightly coat each fillet with 2 tablespoons of white flour for that perfect crispy texture. Shake off any excess flour and prepare to fry the fish.

Heat 2 tablespoons of oil in a non-stick skillet over high heat until it shimmers. Gently place the prepared fish fillets in the hot skillet, cooking without moving them for about 1.5 minutes or until they turn a beautiful golden brown. Carefully flip the fillets using a spatula and cook for an additional 1.5 minutes until the other side is just as golden and the fish flakes easily. Remove from heat promptly to avoid overcooking.

With the fish cooked to perfection, plate each fillet! Drizzle with about 1 tablespoon of the Killer Lemon Butter Sauce, allowing it to cascade over the crispy fillets. Garnish with finely chopped parsley and serve with lemon wedges on the side for an extra zing. Your delightful meal is now ready to enjoy!