Until you reside close to the ocean in some very particular areas, chances are high your crab legs is not going to have been caught that day, so there is a good likelihood you are working with frozen crab legs at house. (That is completely acceptable; frozen seafood is often simply pretty much as good because the recent stuff.)
As with every protein, there are a few other ways to thaw crab legs. Leaving them within the fridge in a single day will sometimes do the trick, however when you’re in a rush, water immersion is the best way to go. That is the place you place the legs in an hermetic container, akin to a plastic bag, then submerge it in water; it’s going to sometimes thaw in about half an hour this manner. One caveat: Use chilly water and depart it within the fridge, as a result of hotter water or normal temperatures could cause the crab legs to basically par-cook, and you do not need that.
From there, merely boil them within the shell as you usually would with any hard-shelled shellfish, akin to crab or lobster (the identical course of would not fairly apply to a softer-shelled creatures, which is why you’ll be able to clear shrimp earlier than you cook dinner them). Afterwards, take away them with tongs, and remember to allow them to utterly cool earlier than you crack them. You do not need to attempt to de-shell a crustacean that is nonetheless piping sizzling.