This is my version of the giblet gravy my grandaddy would make every year for Christmas. Feel free to modify; this is just a starting point, and everyone's tastes differ. (For example, while you can puree giblet gravy for a smoother texture, I like my chunks large enough to be fun, tasty, and identifiable.) Leave a comment and let me know how it goes!
Step 1: Saute giblets
The main body cavity usually houses the neck and tail; a bag of smaller parts may be in the chest cavity or tucked under the skin at the neck. This smaller bag should contain a liver (the big purple blob), the heart, and the gizzard.
Dump the lot into a hot, oiled pan with some pepper and a bay leaf. When you've browned the bits on all sides add a coarsely-chopped onion or two and stir.