A sorta go to for any clam is just cover them with water in a big pot and boil/steam them just until the shells open up and get them off the heat right away. I used to make chowder with the left over liquid with all that nice clam nectar in it. Bigger deal though is getting bits of sand out of them first by soaking them one way or another. They're constantly sucking water in and out that's how bits of sand get there and that's how you can flush it out easy.
