I used to make a chicken gravy (with chunks of chicken) to go on the puppy's dry kibble instead of using canned food, but he didn't like my gravy. So now I just boil chicken and grind it up with some of the broth in the food processor and use that on the dry kibble. DH thinks the pup may be getting bored with chicken and would like to try using other meats as well. He's mentioned trying liver, since it's inexpensive like the chicken is. Besides being absolutely gross to cook, wouldn't too much liver be bad for him? He also gets chicken livers in his cookies and training treats.