When I make stock, and I do regularly, I always add meat and bones, celery, carrots, and onions. I also add just a little curry powder, and turmeric for the healing properties. Strain after simmering several hours, and use or freeze. Crock pots work nicely for this. When I use the crock pot, I start it before bed, so when ever I have time, I can strain and freeze the next day.