Tonight I put some schmalz, carrot ends, a baked chicken carcass, the tough greens from spring onions (which wintered-over in the garden) into a big pot and simmered the lot for a couple of hours. I strained all that mess out and added back in some carrots (chopped), lots of onion, fresh kale and spinach. I simmered that another 45 minutes until everything was soft and the flavors had blended a bit.
It's the kind of soup that will age well--if we leave around to age.
We do like soup around here.