Begin by soaking the lutefisk. Fill a large bowl or container with cold water and place the dried lutefisk in it. Make sure the fish is fully submerged. Allow it to soak for at least 4 to 6 days, changing the water daily. This helps to rehydrate and remove excess lye from the fish.

Once the soaking is complete, preheat your oven to 425°F (220°C).

Rinse the lutefisk under cold water to remove any remaining lye residue. Pat it dry with paper towels.

Place the lutefisk in a baking dish. Cover the dish with aluminum foil and place it in the preheated oven.

Bake the lutefisk for approximately 25-30 minutes, or until it becomes flaky and opaque. Be careful not to overcook it, as lutefisk can become mushy if cooked for too long.

Once cooked, remove the lutefisk from the oven and let it rest for a few minutes.

Serve the lutefisk hot, accompanied by melted butter for drizzling. You can also serve it with mustard sauce, boiled potatoes, and vegetables of your choice for a complete meal.