Pull off the switch cover plate by removing the two screws with a screwdriver. Turn the switch to the on position. Verify that the power is off to the switch by touching one leg of a circuit tester to the ground wire within the box, and the other to one of the two contact screws on the switch.
Boiling is the most common way to cook crabs and a favorite for all varieties. 1  Bring a large pot of water to a boil. Make sure to salt it enough so it tastes as salty as ocean water. 2  Add the crabs as quickly after one another as possible, so they cook for the same amount of time.
5. Drop in the crab legs and wait for the boiling liquid to return to a boil. Reduce the heat to medium-high, and let the crab legs boil for 4 to 5 minutes for smaller varieties of crab, 7 to 8 for larger varieties, and up to 15 minutes for colossal.Remove from heat immediately. Remember, you're most likely not cooking them so much as reheating them.educe the heat to medium-high, and let the crab legs boil for 4 to 5 minutes for smaller varieties of crab, 7 to 8 for larger varieties, and up to 15 minutes for colossal.