Homemade stock almost always tastes better than boxed or canned, and this is never more true than with vegetable stock!
In the case of chicken or beef stock, the stock comes from cooking bones in water on low heat, for several hours. With vegetable stock, there are no bones to cook, so the richness of the stock comes from the variety of vegetables you use.
A big thanks to Hank Shaw who shared his method for making veggie stock with me, after tiring of hearing me complain about a boxed version I had used. (I have yet to find a commercial vegetable stock that is remotely palatable.)
How to make vegetable stock
Our vegetable stock starts with a classic base of chopped up onion, carrot, celery, and fennel. You could also include parsnips, leeks, or corncobs, depending on what is season and available.
We brown the vegetables in a little olive oil; you could also roast them in the oven for an even deeper flavor. It helps to brown the veggies first, so the stock gets infused with some of the flavors from caramelization.
To achieve "umami", that savory element that makes everything else taste better, we are including rehydrated dried mushrooms and a little tomato paste.
Then we add water and garlic, bay leaves, rosemary, thyme, parsley, and peppercorns.
How long to cook vegetable stock
Unlike chicken or beef stock, which needs time to extract all the goodness from the bones, with vegetable stock, you cook the stock for only an hour to an hour and half.
Less than an hour and there's not enough time to extract the full essence of the vegetables. Beyond an hour and a half, the flavors begin to disintegrate.
How to Make Vegetable Stock
- 1 ounce dried mushrooms*
- 4 tablespoons extra virgin olive oil
- 4 cups chopped onion
- 2 cups chopped celery
- 3 cups chopped carrot
- 1 cup chopped fennel bulb (optional)
- 2 large garlic cloves, smashed (can leave skins on)
- 1 tablespoon tomato paste
- 1 tablespoon fresh rosemary
- 2 teaspoons dried thyme
- 1 teaspoon black peppercorns
- 4 bay leaves
- 1/2 cup chopped parsley
- *If you want to use fresh mushrooms instead, use about 5-6 ounces, thickly slice them, and dry sauté them first in a separate pan, until they are lightly browned and have given up some of their moisture. Then add in with the rest of the vegetables.
Rehydrate dried mushrooms
Place the dried mushrooms in a large bowl and pour 1 quart of boiling water over them. Set aside.
Brown the onions, celery, carrots, fennel
Heat the olive oil over high heat in a large stockpot. Add the chopped onions, celery, carrots, and fennel (if using) and stir to coat. Sprinkle with salt. Cook over high heat for several minutes, stirring only occasionally.
Given that there are so many vegetables, and they have a high moisture content, it may take more heat and longer time to brown than you would expect. Cook until the vegetables begin to brown.
Add garlic and tomato paste
Add the garlic and tomato paste and stir to combine. Cook, stirring often, for 2-3 minutes, or until the tomato paste begins to turn a rusty color.
Add the mushrooms and their soaking water, the rosemary, thyme, onion skins (if using), peppercorns, bay leaves, parsley and 4 additional quarts of water
Bring to a simmer and then drop the heat until you just get a bare simmer. The surface of the stock should just barely be bubbling. Cook for 1 1/2 hours.
Strain the stock
Using a spider skimmer or slotted spoon, remove all the big pieces of vegetable and mushroom. Discard or compost.
Set up a large bowl or pot with a sieve set over it. Line the sieve with a paper towel or coffee filter and pour the stock through it.
When you have about half the stock poured through, stop, let what's in the strainer filter through, and change the paper towel; the old one will be gunked up with debris. Filter the rest of the stock.
Pour into jars and chill or freeze
To store, pour into glass jars and refrigerate for up to a week, or freeze. If you freeze in glass jars, leave at least an inch and a half of headroom so the stock can expand without breaking the glass of the jar.
Roasted Vegetable Stock - from The Kitchn
Homemade Bouillon - from 101 Cookbooks