2 tb Butter or olive oil 1 Onion - diced into 1/2-in squares 1 c Leek greens; roughly chopped 2 md Carrots; peeled and diced 4 Outer stalks of celery; plus Celery leaves; diced 1 c Cubed winter squash -=OR=- Squash Seeds & Skins 1 c Chard stems - cut into 1-in lengths 1 md Potato; diced, -=OR=- 1 c -Thick Potato Parings 1/2 Celery root; scrubbed, diced 1/4 c Lentils; rinsed 6 Thyme sprigs; -=OR=- 1/4 ts -Dried thyme 2 Bay leaves 2 Handfuls borage leaves -=OR=- Chard leaves, lettuce - or nettles 3 Sage leaves 10 Parsley sprigs - roughly chopped 4 Garlic cloves - peeled and chopped 1 ts Salt 2 ts Nutritional yeast (optional) 8 1/2 c Cold water HEAT THE BUTTER OR OIL in a wide pot, add the vegetables, lentils, herbs, garlic, salt, nutritional yeast, if using, and 1/2 cup water, and stew over medium-low heat for 15 to 20 minutes. Pour in the 8 cups of cold water and bring to a boil; then simmer, partially covered, for 30 to 40 minutes. Pour the stock through a sieve and press out as much of the liquid as possible. Use it as is, or reduce it further for a richer flavor. Taste and season with more salt, if needed. Makes 4 to 6 Cups