To serve hot, bring a large pot of water with 1 tablespoon salted butter and one tablespoon heavy cream to a boil. make sure you have enough liquid to cover all claws. Turn off heat add claws, cover just to heat through, 2 minutes, remove with tongs, place in open plastic bag and crack claws gently with mallot to crack. Important...do not overcook they only need to get warm. Serve hot with melted butter and mustard sauce.