Instructions
Preheat the oven to 400°F. Place the carrots, celery, onion and garlic on a sheet pan, toss with the olive oil until evenly coated.
Place the pan in the oven and roast for 40 minutes, stirring once, until the vegetables are tender and golden brown.
Transfer contents of the pan to a large saucepan or stockpot. Combine the vegetables with water, rosemary, bay leaf, peppercorns and clove.
Bring to a boil, reduce heat and simmer, stirring occasionally for one hour or until the stock has reduced to 8 cups. Strain.
Notes
This recipe can be doubled as is.