PUREED MUSHROOM SOUP

Pureed Mushroom Soup image

Provided by Martha Stewart

Number Of Ingredients 7

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2 tablespoons olive oil
1 onion, coarsely chopped
Coarse salt and freshly ground pepper
20 ounces button mushrooms, trimmed and quartered
1 baking potato, peeled and cut into 1-inch chunks
1 can (14 1/2 ounces) reduced-sodium chicken broth
1 to 3 teaspoons fresh lemon juice

Steps:

In a large Dutch oven or pot, heat oil over medium heat. Add onion. Season with salt; cook, stirring occasionally, until softened, 5 to 7 minutes.
Add mushrooms, potato, broth, and enough water (4 to 5 cups) to cover. Bring to a boil; reduce heat to medium, and simmer until mushrooms and potato are tender, about 20 minutes.
Using a blender or an immersion blender, puree broth and vegetables until smooth. If using a blender, work in batches and fill only halfway, allowing heat to escape: Remove cap from hole in lid, cover lid firmly with a dish towel, and blend. Transfer to a clean pot as you work. Adjust soups consistency with a little water if necessary. Season with salt, pepper, and lemon juice.