Schi -meaty or vegan , or dairy (gluten free) usually about 45 minutes total time (good crockpotter)

When we were kids Other Mother Brother would occasionally make this sauerkraut soup( or a very similar one) with bones during winter. For all the reasons you would expect it was cozy and still makes me think of him.  Because our sorrel grew up and bolted when I wasn't looking (silly me) I can't have my favorite (and much more traditional for summer) Schi  (http://www.ruscuisine.com/recipes/soups/schi-and-borsch/n--620/)  and we had mushrooms and sauerkraut lying around , hence:

Schi  ----warning! your house will smell like sauerkraut for a day or two after making this. Fortunately it freezes well and is very very cheap.

take:
1 lb  sauerkraut (traditional ferment if you can find it)reserve the liquid for the broth
1 lg chopped onion or 2 cleaned leeks chopped
4 cloves diced garlic
1 sliced or shredded carrot
3 ribs celery (optional)
8 oz mushrooms (I usually use a mix of rehydrated shitake and fresh crimini) chopped into hunks
2 tsp caraway
4 juniper berries(not necessary but nice)
4 peppercorns or a few grinds of pepper
1 bay leaf
 and saute in 2 tb fat (olive oil, beef or pork drippings, butter) in a heavy bottomed pot  deep enough to make 4 qts
(like my 5 qt enamel dutch oven or a stock/crock pot)

once onions are translucent add:
1/2-1 lb parsnip, potato and/ or turnip)
and
(optional) meat : 1 browned pork  chop with bone, or  beef soup bone/oxtail of choice or 6 oz of chicken prepared as you would for soup. Similar quantities of rabbit would likely also work but as a pescatarian I have no clue how.
and /or
(optional) more dried mushrooms
and /or
(optional) add 9 oz tasty but not at all traditional kale
and/or 6 oz of barley (which is not gluten free and is optional)

3 qts broth (beef, chicken, or mushroom) or water plus the reserved sauerkraut (please note that this is not low sodium and is not intended to be)

Bring to a simmer and cover until :

in the case of no meat
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your root veggies begin to  fall apart

in the case of meat on  a bone
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your root veggies begin to  fall apart and the meat begins to fall off the bone
(fork shred the remainder and pull out the bone- if you can add the marrow to the soup and cook a bit longer)

in the case of meat not on a bone
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your root veggies begin to  fall apart and the meat is cooked (you would know better than I would)
 turn off the fire and  now, for the final countdown you can finish in several ways 
 1. use a stick blender or potato masher on about half and then stir for a creamier texture
 2. garnish with parsley or paprika (about 1 tsp))
 3.  add 1/2 c sourcream or hung yogurt and stir until consolidated
 4. serve it as is
5. 1&2, 1&3, 2&3, 1-3, or take half and do 1 and then 3 with the other half ...oh you get what I mean
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I like to eat this with dill pickle and whole rye bread spread with sour cream/ hung yogurt if we have it (well not if there's any in the soup) garnished with sardines or herring(when Rabbit doesn't have to watch), or thin cut raw sliced beets (when she is there to see it) or maybe some home made apple sauce.