Stir in the farro and bring to a simmer ... Garnish with cheese and serve. Make Ahead: The soup can be refrigerated for 3 days and reheated before serving.
Add the farro and tomato paste and cook, stirring, until the grains are coated and shiny, 30 seconds. Add 1 quart of the water and the beans and bring to a boil. Simmer over low heat for 30 minutes.
Fill a medium pot with salted water and bring it to a boil over high heat. Once boiling, add farro and cook until tender, 18-20 minutes. Drain, toss dry and set aside. Meanwhile, place celery root ...