Home Economy: Roasted Vegetable Stock

One of the graces of home cooking is that there are no paying customers demanding a dish to be exactly the same visit after visit. Each time you make roasted vegetable stock you use any variety of vegetables, bones, meats, herbs, and spices you happen to have. Each time the stock will have a subtly unique flavor. This may not work well in a restaurant, but is terrific at home.

This post is dedicated to my 1970's junior high school home economics teacher, Mrs. Waetje, who taught that reducing waste is a tenet of home economics-- a wise use of family finances. It is a great feeling to rummage through the fridge for vegetables that may otherwise go to waste and turn them into liquid gold. Thank you, Mrs. Waetje, and if you are still out there, I was paying attention despite my wiggles and perpetual chatter.

Wake up Your Cooking with Aromatic and Delectable Stock

Your roasted vegetable stock will add layers and layers of flavor to the soups and stews you make-- that's a given. Use your liquid gold to make risotto, to cook rice and grains like barley, farro, and buckwheat groats. Use it as a medium in which to simmer your dried beans, and as a base for meaty braises. A ladleful added to just about any ragu or stew will deepen its flavor. And one of my favorite things is to cradle a hot mug of broth first thing in the morning as a gentle winter wake up tonic.

The Difference Between Unroasted and Roasted Vegetable Stock

Roasting the vegetables before the simmer produces a deep, richly flavored stock perfect for supporting heartier cool-weather ingredients and recipes. Save the light golden unroasted vegetable stocks for spring and summer cooking. To make a typical light golden broth, simply do not roast the vegetables first, and omit the mushrooms. Follow the remaining directions as they are written.

The Difference Between Stock and Broth

There seems to be a different answer to this question for every person who asks it. Some say that to be called stock it needs to be made with bones, or that broth is something you sip and stock is something you cook with. Another pundit suggests broth is lighter and more flavorful, while stock is thicker. That is questionable, in my opinion, as light broths can be rather wan and flavorless, and thicker stocks can be full of complex flavor.

So, potayto, potahto. Make some, enjoy it, and call it whatever you want. To me, spring and summer cooking seems to lend itself to light broths, autumn and winter to rich, brown stocks. The cooking community seems to agree that the terms are interchangeable. Whatever rolls out of my mouth is the term I'll use!

Vegetable Stock Do's and Don'ts

The very thrifty among us (like Mrs. Waetje, I'm sure) keep a zip-bag in the freezer and stuff clean, vegetable scraps into it. When it's full it is time to make stock.

Classic mirepoix-- onion, carrot, and celery are standard issue in stock making. (You will note the absence of celery in the mis en place photo below. I didn't have any, and it is not noticeably missed in the resulting stock.) See the notes section of the recipe for a more comprehensive list of vegetables and optional ingredients that can contribute to great stock.

Most vegetables make a good stock, with a few exceptions; Brussels sprouts, broccoli, cauliflower, asparagus, and artichokes can be overpowering or add off-putting flavor notes, so avoid them for this purpose. Beets, especially red ones, will likely make your stock an odd and unappealing color, so think twice about throwing those into the pot. Potatoes are fine, but I don't use them to keep the stock a little more clear than cloudy, a personal preference.

Mushrooms are lovely in a roasted vegetable stock. Dried mushrooms, even better! Just one ounce of dried mushrooms (don't roast them-- just add them to the pot with the water) intensify the rich flavor and add a deeper color to the stock. They are not required, but do add something nice and grounding.

Limp, wilted, scuffed, and past-their-prime vegetables are all fair game. Just be sure to peel or cut off any parts that have blackened or have signs of mold to keep your broth clean and fresh tasting.

Use Your Roasted Vegetable Stock in These Recipes

To cook the grain in Roasted Mushroom, Grain, and Spinach Salad. Get the Recipe.
In place of the water in Pumpkin Black Bean Soup. Get the recipe.

Last Words

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Roasted Vegetable Stock

Course: Soup + Stew

Season: Mist (November - March)

Dietary: Dairy-Free, Gluten-Free, Vegan

Preparation: Roasting

Total Time: 2 hours hours 15 minutes minutes

Servings: 2 quarts

Deep, richly flavored roasted vegetable stock provides perfect support to hearty cool-weather ingredients and recipes.

Print Recipe

Ingredients

• 4-5 pounds mixed vegetables See notes.
• 4-6 cloves garlic
• 2-3 Tablespoons olive oil
• 1 teaspoon kosher salt, plus more for adjusting at the end
• 1 teaspoon whole black or mixed peppercorns
• 1 bunch parsley, flat leaf or curly, stems trimmed
• assorted fresh herbs of your choice, about one bunch total, OR dried herbs of your choice, up to 2 teaspoons
• 1 ounce dried mushrooms, any variety, optional
• 1-2 bay leaf
• other optional ingredients of your choice. See notes.
• 2½ quarts water

Instructions

• Preheat oven to 350°, or 325° convection. Line a 13" x 18" baking sheet with foil.
• Wash the vegetables and trim away any spoiled parts. Cut the vegetables into evenly sized chunks and place them on the foil-lined baking sheet. Sprinkle lightly with salt and a good drizzle of olive oil, up to 3 Tablespoonsful. Mix gently together with your hands. Place the sheet into the oven and roast for about 40 minutes, or until the onions and other vegetables are beginning to take on some roasted color and are quite fragrant, stirring halfway through.
• Place the roasted vegetables and any browned stuck-on parts and oil that remain into an 8 quart stockpot. Add the salt, peppercorns, fresh or dried herbs, dried mushrooms, if using, bay leaves, and water. Bring the pot to a rapid boil, and immediately reduce heat to maintain a simmer. Cover, and cooking for 1-2 hours, stirring often. Remove the lid for the last half of cooking.
• Taste the stock and adjust seasoning by adding more salt if necessary. Allow the stock to cook slightly until safe to handle.
• Strain the stock first through a colander to remove the larger bits, then strain again through a very fine mesh strainer to remove the tiny bits that make it cloudy. Store in the refrigerator for up to 5 days, or freeze for up to three months.

Notes

Vegetable selection:

Classic mirepoix-- onion, carrot, and celery are standard issue. Most vegetables make a good stock. Do use the leaves, peels, skins, and stalks of leeks, garlic, peppers, parsnips, turnips, squashes, fennel, kohlrabi, tomatoes. Corn and corn cobs and celery root, are good additions, too. 

Think twice about using Brussels sprouts, broccoli, cauliflower, asparagus, and artichokes which can add overpowering off-putting flavor notes. Potatoes are fine, but omitting them will keep the stock from becoming too cloudy.

Mushrooms are lovely in a roasted vegetable stock. Dried mushrooms are even better! Just one ounce of dried mushrooms (don't roast them-- just add them to the pot with the water) intensify the rich flavor and deep color to the stock. They are not required, but do add something nice.

Optional additions:

Rinds (not the juicy flesh) of citrus, especially lemon and orange.

Nubs of fresh ginger and/or turmeric.

Dried chilis of any variety. I find a couple small arbols add a very subtle warmth. The larger dried chilis will make a marked flavor difference and would be fantastic as a tortilla soup base, for example. 

Varied fresh herbs. Nearly all herb will make a nice flavor contribution, but do be careful with some of the more overpowering herbs such as rosemary and oregano. A little can go a long way.

Dried herbs are much more condensed in flavor than fresh, so a little goes a long way here, too. But do use them!

Juniper berries are wonderful in a stock. Add up to 1 teaspoonful, gently crushed to release even more of their wintry flavor.