Melt ghee in a large pot.
Pat the meat dry with paper towels and sprinkle with salt and pepper.
Sear the meat 2 minutes per side and move to a plate.
Add onions and mushrooms and cook for 5 minutes.
Add garlic and stir one minute.
Add coconut aminos and tomato paste.
Add the beef back to pot with juices.
Add beef broth, red wine vinegar and carrots, bring to a boil.
Reduce heat and simmer 20 minutes.
Add "noodles" and simmer for 10 minutes.
Make a slurry with 2 tbsp water and arrowroot and add to pot stirring well.
Temper sour cream by removing a few tablespoons of the broth and placing in a bowl and mixing with the sour cream. Now add sour cream and simmer till soup thickens a bit. This will prevent the sour cream from curdling in the hot soup.
Garnish with fresh parsley.
Enjoy!