First, you need five pounds of beef or veal marrow bones from your butcher. Dirt cheap usually. We bought five pounds for about $7.50. Remember to ask your butcher to cut them in half or quarters so that you have more marrow surface area exposed for that caramelized goodness.
I lit my smoker and brought to 450 F, placed some pecan in the ash pan for smoke flavor, then placed the pan on the top rack. The recipe calls for 30 minutes of roasting time. While waiting, I went inside and prepared my veggies.
Quartered sweet onion, celery, one head of garlic, and carrots (yes, they are hiding on the bottom) go into this stock. After the bones had their first 30 minutes of roasting time, I went out and placed the veggies in the pan and allowed the whole mix to roast for 30 more minutes.
Bones at 30 minutes:
Everything after 60 minutes total:
I was a little worried that there was not enough crusty brown on the veggies or the bottom of the pan, but I pressed forward. I transferred everything into my stock pot then added enough water to cover everything. While I was bringing this mix to a boil, I added two cups of water to the pan and scraped what little caramelization there was off the bottom. Once that was done, I transferred this liquid into the pan. Once at a boil, I reduced the heat and let simmer on low for four hours.
After four hours:
Veggies removed and broth strained:
Warning, do not make this broth if you are hungry. We were tortured during the four hours of simmering with a beefy, smoky flavor that had me craving some sort of beef. We took a pint of this liquid and turned into gravy to try it out. First, we placed onside leftover trip-tip and egg noodles. The next day we ladled the gravy over some grilled stuffed flank steak, an impulse buy at the butcher.
Here is our total yield, minus a pint for the gravy: seven pints and two half gallons. Once cool, I placed in the freezer for future use.