Sauerkraut Soup

This classic Russian soup is rich and full of complex flavors. While there are probably as many versions as there are families, the key ingredient is always sauerkraut. (It’s best served with a whole head of soured cabbage, but you’re going to have trouble finding that; just stick with good sauerkraut, sold in bulk or in plastic packages, which contains nothing but cabbage and salt.)

This is one of those soups that pretty much requires good stock, and it’s nice to make it especially