Button Mushrooms: Cream of Mushroom Soup

As our diets have moved to the veggie end of the omnivore scale, we find ourselves eating more and more mushrooms. They’re a little weird when you think about it. Not really vegetable, certainly not animal. Still, they’re “meaty” to be sure and their flavors help define the taste of umami.

The domesticated button mushroom is the most common mushroom in the world. For most of us, we purchase these guys in shrink-wrapped containers found in the produce market, but they can still be harvested the old fashion way in fields of grass after a light rain from spring to autumn. Still, we recommend that only the expert mushroom hunter identify and pick these guys (they have a deadly doppelganger named Destroying Angel). Foraging for wild and cultivated mushrooms at your local farmers market is much safer.

Culinary mushrooms are relatively calorie free but loaded with vitamins and minerals (vitamin D, riboflavin, folate, niacin and potassium). While a third of their calories come from protein, a cup of diced or sliced mushrooms contains a mere 15 calories, or 1% of a recommended daily adult intake. There’s not much to them. So it’s surprising mushrooms pack so much rich flavor.

That’s what we like best about mushrooms – their meaty, woodsy flavors and textures. They’re more flavorful cooked in a hot dry pan until toasty brown. It’s our favorite preparation before finishing with a sprig of thyme and a little olive oil, or butter in the hot pan. Then topped with crunchy sea salt and a little pepper just seconds before serving. They’re also tasty finished with fresh chopped garlic and served with toast or crusty bread, add them to soup, or serve with steak. However you plan on preparing them, be sure to add mushrooms to your diet.

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Cream of Mushroom Soup

8 ounces button or crimini mushrooms
1 large or 2 small leeks
2 tablespoon + 1 tablespoon butter
2 tablespoon olive oil
1 garlic clove
3 tablespoons Sherry
3 cups veggie broth
2 cups whole milk, cream, or half & half
A few dashes (more or less) Worchester sauce
1/4 teaspoon chopped fresh thyme
Salt & pepper

Wipe off the mushrooms using a dry paper towel. Separate the stems from the mushroom caps. Keeping them separated, rough chop the stems and slice the caps.

Slice the leek down the center and wash the inside completely, under running water. Chop the leek.

In a large saucepan over medium heat add 2 tablespoons butter and the olive oil. Once the butter bubbles have subsided, add the leeks and cook until translucent, 2-3 minutes, add the chopped mushroom stems and sauté until the pan is dry but the veggies are not browned, 4-5 minutes. Push the veggies aside and in the center of the pan add the minced garlic. Stir the garlic until fragrant, about 20 seconds. Stir the veggies with the garlic. Season with a pinch of salt and pepper, then add the sherry, deglazing the pan and reduce the liquid slightly, about 3-4 minutes. Add the veggie broth and remove from heat.

Pour the soup into a blender and blend until smooth.

In the meantime, melt the remaining butter in the saucepan and once the bubbles have subsided, add the sliced mushrooms and sauté for 3-4 minutes. Season with salt and pepper then add the pureed soup and the 2 cups of milk, cream, or half & half. Season the soup with Worchester sauce, thyme, salt and pepper to taste. Simmer the soup before serving, do not boil.

Le Tourin

An olive oil fried egg sits atop the delicious le tourin.

Jason’s exquisite wild yeast bread seems so precious a resource that wasting even a crumb is criminal. Stale bread is a marvel of versatility as an ingredient. Dry crunchy old bread can be transformed quickly into crumbs and used as a coating for pan fried chops, as a topping for gratin or a as thickener of sauces. Large pieces of stale crusty bread are refreshed when tossed with chopped ripe, in-season tomatoes, extra virgin olive oil and fresh herbs. We toast slices of fresh country bread and set them in the bottom of large soup bowls where they absorb the rich vegetable broth that is Lidia Bastianich’s Acquacotta. Chad Robertson’s Le Tourin recipe makes use of days-old bread as an absorbent sponge in a hearty vegetable soup topped with a creamy yolked fried egg reminiscent of the Acquacotta. In fact, the simple principle of soaking hard old pieces of bread in a richly flavored broth or sauce to create a meal is universal, born of necessity in less prosperous times.

The simple makings for a wonderful soup.

The next time you hesitate to buy the baguette you know you’ll love, or the big round of crusty bread that looks and smells too good to be true, simply because you don’t think you’ll eat it all, remember that the bread you buy today will age into a delicious, nutritious and inexpensive ingredient tomorrow. Breakfast, lunch or dinner, days-old bread and vegetable soup never disappoints. This recipe is a general guide, a statement of technique. You should use whatever veggies you have on hand as well as whatever broth you like. Water works just as well if seasoned properly. Fried eggs are great, but you could also poach eggs in the soup before spooning the broth over the bread.

The drizzle of red wine vinegar over the egg in this dish adds a little zip to an otherwise earthy soup. We used peppery “wild” arugula in place of the kale, but just about any flavorful green will do (beet, chard, collard). I like to flavor the soup with whole sprigs of fresh herbs that are plucked out of the pot just before serving. Fresh thyme is a favorite. In summer, peeled diced fresh tomato would make a perfect addition as would thin strips of fresh basil scattered over the top after plating. If you want to guild the lily, a fine dusting of grated hard cheese adds a lot of rich flavor to the final dish. A final drizzle of extra virgin olive oil never hurts either!

Le Tourin Recipe

(Source: Tartine Bread by Chad Robertson)

2 tablespoons olive oil

3 medium carrots, peeled and quartered lengthwise, cut into 2 inch lengths

1 large yellow onion, cut into half inch wedges

1 bunch kale, stems removed

4-6 cups stock or water

Salt and freshly ground black pepper

Red wine vinegar

3 slices day-old bread, whole-wheat or country, torn into chunks

Heat oil in large sauté pan over medium-high heat. Add carrots and onion wedges, cut-side down. Reduce heat to medium and cook without stirring until veggies begin to caramelize, about 5 minutes. Turn to brown the other side and cook an additional 5 minutes. Add greens and broth to the pan, bring to a simmer and cook 10 minutes.

Divide pieces of broken bread between two large soup bowls. Spoon veggies over the top of the bread and then ladle broth over the bread. Top with fried or poached egg and drizzle a teaspoon or so of the red wine vinegar over the egg. Dust with freshly grated black pepper and serve.