|1½ fl oz|
- Heat oil in a stockpot over medium heat.
- Add mirepoix, leeks, mushrooms, turnip, fennel, and garlic. Sweat for 10 minutes. Stir as necessary so vegetables do not brown.
- Add tomatoes, water, and sachet.
- Bring to a simmer, and simmer 45 minutes.
- Strain and cool in a water bath.