Turn on oven to 350 degrees.
Rinse off chicken thighs in cold water, and place in a large 9x13 glass casserole dish. Place liver there, too, in a separate plate.
Bake for 15 minutes, give or take, long enough to kill off possible bacteria from outer parts, BUT NOT TO COOK THE BONES.
When finished, remove from oven and place in a large bowl with water to stop the cooking process.
Set aside the pyrex dish. If there are enough drippings, reserve them for adding into the mix later.
Using kitchen shears, chunk up some of the meat. The idea is to get it into pieces that can be worked through the grinder, so it doesn't have to be precise.
Run the chicken through the grinder, then liver.
Combine and set in fridge while making the "supplement slurry."
In a medium bowl, combine water, vitamins, salt, eggs, and fish oil.
Add the apple cider vinegar.
Whisk together. The mixture will be the consistency of chili beans.
Get the large bowl of chicken meat, and slowly work in the supplement slurry a little at a time.
When fully combined, put into the containers, leaving about 3/4 inch space at top to allow for expansion when frozen.