Remove the outer edge of celery root, chop up the white flesh of the celery root into 1" chunks. Chop up the potatoes, onions, carrots and garlic.
Cut up bacon in to small pieces and saute in a soup pot until almost cooked all the way through.
Add in all the vegetables and saute in soup pot until the onion is translucent and vegetables start to become soft.
Next add in broth and bring to a boil, turn down the heat and cook until vegetables are fork tender.
Remove approx. 2 cups of vegetables from soup. Use a hand held blender and blend soup until creamy. Add the 2 cups of vegetables back into the soup, Add in 1/4 C cream and stir.