One of the best methods for reheating crab legs is to steam them. In contrast with boiling, you can use a smaller pot and much less water — so it'll take a lot less time than boiling them.
Transfer the mixture to a chilled mixing bowl and fold in the crab, garlic chives ... Blanch the dumplings in a large pot of unsalted boiling water for 2 minutes, then remove with a slotted ...