Transfer the king crab legs to the refrigerator and allow them to thaw overnight for about 8 to 12 hours.

Once thawed, the crab legs can stay refrigerated for up to 5 to 7 days before cooking. If you aren’t ready to use them yet, they can remain frozen for up to 12 months thanks to their protective glaze

Preheat your oven to 350 degrees Fahrenheit.

Place the thawed king crab legs into a large baking dish. Add lemon slices, garlic cloves, fresh herbs, or any additional seasonings you enjoy.

Lemon pairs beautifully with the naturally buttery flavor of Alaskan king crab legs, while garlic and thyme create a rich, savory finish.

Pour about 1/8 inch of hot water into the bottom of the baking dish.

Cover the entire dish tightly with aluminum foil. This step is important because it creates steam inside the pan, helping prevent the crab legs from drying out while reheating.

Bake for about 10 minutes or until the crab legs are evenly heated through and steaming hot.

Remove from the oven carefully, uncover, and allow them to cool for a few minutes before serving.