1999 Plymouth Breeze pcv valve

Hi, my pcv valve broke off in my valve cover. There is a metal piece it screws into that i pulled out of the valve cover but i can't get the broke piece out. I don't know what the metal piece in the valve cover is called in order to get a replacement part it is the shape of a donut round with a hole in it that is threaded so the pcv vale can screw into it. Can you help me figure out what that part is so i can replace it please?

Thank You very much,
Nancy