Preheat the oven to 350°F (176°C). Using the flat side of the knife, press down and smashed the black peppercorns. Chop the black pepper roughly. Heat up the butter in the microwave, then add the black pepper and salt. Stir to mix well.
To kill a live Dungeness crab, stab the crab in the middle of the body, above its abdominal flab. As pictured here. Set aside for 10 minutes, until all the murky dark water from inside the Dungeness crab drains out. Rinse and pat dry with water.