1. Combine water, lemongrass, garlic, ginger and salt and bring to a boil; reduce heat and simmer 5 min. Rinse any ice glaze from frozen Alaska Crab under cold water. Add crab legs; simmer for 6 to 8 min. for frozen crab or 3 to 4 min. for thawed crab, until heated-through. Remove crab from liquid and drain well before serving.