To steam a crab, follow these steps:
1. Fill a large pot with water and bring it to a boil.
2. Place a steaming rack in the pot.
3. Add your cleaned and prepared crabs to the pot.
4. Cover the pot with a lid and steam the crabs for about 15-20 minutes, depending on their size.
5. Check the crabs for doneness by pulling off one of the legs; if it comes off easily, they are ready.
6. Remove the crabs from the pot and let them cool before cracking them open to enjoy the delicious meat inside.
Enjoy your steamed crabs!