Fill a large pot with a steamer insert with about 1 to 1 ½ inches of water, or just enough water so that the level is below the bottom of the steamer basket.
Flavor the steaming liquid by adding sprigs of fresh herbs, smashed garlic cloves, celery, shallots, with half a lemon if desired.
Cover the pot with a lid and bring the water to a boil over high heat.
Remove the cover and place the steamer basket into the pot.
Next, add the crab legs to the steamer basket, bending large king crab legs as needed to fit in the pot, and placing the snow crab or Dungeness crab cluster-side-down.
Cover and steam the crab legs until the meat is warmed through. For king crab legs: steam for 6 to 8 minutes. For snow crab legs or Dungeness crab clusters: steam for 4 to 5 minutes. For frozen crab legs: double the cook time.
Let the crab legs cool before cracking and serving.
Notes
Choose high-quality crab legs. Use large, fresh or high-quality frozen crab legs. If purchasing frozen, look for legs that are free of ice crystals and freezer burn to ensure optimal taste and texture.
Properly thaw the crab legs. If using frozen, be sure to thaw them in the refrigerator overnight. Avoid thawing at room temperature to prevent bacterial growth and preserve the crab’s delicate texture.
Don’t overcookthem. Overcooking will make the crab leg meat tough and dry. Be sure to monitor cooking times closely and remove the crab legs from the heat as soon as they are warm through. Crab legs are sold already cooked; you are simply reheating them.