How do you cook neckbones?

Assuming we're talking about bone marrow the simplest, best way to prepare marrow is to roast the bones upright at 350 degrees Fahrenheit for 15 minutes. Fat will leak out the bottom, and you want to eat it all, so use a pan, or at least catch the drippings with molded foil. When the marrow begins to slightly bubble, it's ready to be eaten.