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Seasoning a winter soup with nutritional yeast

In this image taken on Feb. 13, 2012, nutritional yeast flakes lend a savory, cheesy flavor to this winter-friendly pumpkin and white bean soup with sourdough croutons as shown in Concord, N.H. (AP Photo/Matthew Mead)

In this image taken on Feb. 13, 2012, nutritional yeast flakes lend a savory, cheesy flavor to this winter-friendly pumpkin and white bean soup with sourdough croutons as shown in Concord, N.H. (AP Photo/Matthew Mead)

It’s awfully hard to get excited about a food called “nutritional yeast flakes.” It sounds like something you either need a prescription to get. Or a prescription to get rid of. Even worse, it resembles yellow flaked fish food. But trust me, this is an ingredient worth looking beyond its name and appearance.

Nutritional yeast flakes have been around for years, but they are all but unheard of outside the vegan world, which uses them to simulate the flavor of cheese. There’s a reason they use them that way. These flakes are jammed with glutamates, the compounds that give us the savory wonderfulness in Parmesan and steak.

But let’s back up to the basics. Nutritional yeast flakes are produced by growing, harvesting and drying a variety of yeast that is different from that used in baking. The resulting powder is loaded with B vitamins, has 2 grams of protein per tablespoon, and has no fat, sugar, salt or gluten.

And yet it is a flavor powerhouse. Those glutamates (the same chemicals that give MSG is oomph) add lushly savory, decidedly cheesy flavor to whatever they touch. That’s why vegans use them to create “cheese” sauces. But you don’t have to be a vegan to appreciate them.

You’ll usually find nutritional yeast flakes in the grocer’s natural foods section, sometimes in shaker-style canisters (Bragg is a popular brand), or in the bulk section. So what should you do with them? In general, they need to be added to a recipe with at least some moisture (the popcorn idea below is the exception).

e_SBlt The most popular use is as a popcorn topping. In a blender, combine a bit of kosher salt and a few tablespoons of yeast flakes. Pulse until finely ground, then toss with buttered (or oiled, if you’re vegan) popcorn.

e_SBlt Saute small whole button mushrooms in a bit of olive oil. When the mushrooms are browned, season with salt, pepper and yeast flakes. Saute for another minute or 2, or until the flakes have dissolved.

e_SBlt Add a tablespoon or 2 to chicken soup to punch up the savory flavor.

e_SBlt Saute lean ground beef, then mix in a bit of yeast flakes, ground cumin, salt and pepper. Use as a taco filling or nacho topping. Or spoon onto buns.

e_SBlt Saute cubed steak tips, chopped onion and minced garlic in a bit of olive oil. Just before the meat is done, add yeast flakes and a splash of white wine or broth to deglaze the pan and create a sauce. Season with salt and pepper.

Pumpkin and White Bean Soup With Sourdough Croutons

Serves 6

3 thick slices sourdough bread, cut into cubes

4 tablespoons olive oil, divided

4 tablespoons nutritional yeast flakes, divided

1 large yellow onion, diced

2 cloves garlic, minced

¼ teaspoon red pepper flakes

15-ounce can pumpkin puree

15-ounce can white beans (such as navy), drained

1 quart (4 cups) chicken broth

Salt and ground black pepper, to taste

Heat the oven to 375 degrees.

Place the bread cubes in a large bowl. Drizzle with 2 tablespoons of the olive oil, then toss to coat evenly. Sprinkle 1 tablespoon of yeast flakes over the bread, then toss again.

On a rimmed baking sheet, spread the bread in an even layer. Toast for 10 to 15 minutes, or until slightly crunchy, then set aside to cool.

Meanwhile, in a large saucepan over medium-high, heat the remaining 2 tablespoons of oil. Add the onion, garlic and red pepper flakes. Saute until the onion is tender, about 6 minutes. Add the pumpkin, beans and broth. Bring to a simmer and cook for 10 minutes.

Transfer the soup, working in batches if necessary, to a blender and puree until smooth. Return the soup to the saucepan. Add the remaining 3 tablespoons of yeast flakes and stir well. Season the soup with salt and pepper, then ladle into serving bowls and top with the croutons.

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