Caramelized Onion and Mushroom Bisque

Recipe from Oxmoor House

More From Oxmoor House

Recipe Time

Cook Time:
Prep Time:
Total: 1 Hour, 37 Minutes


Ingredients

  • 2 tablespoons butter
  • 3 pounds onions, sliced and separated into rings
  • 2 garlic cloves, chopped
  • 4 1/2 cups vegetable broth, divided
  • 2 tablespoons olive oil
  • 4 (3.5-ounce) packages shiitake mushrooms, stems removed and sliced
  • 1/2 teaspoon salt
  • 1/2 cup whipping cream
  • 2 tablespoons dry sherry
  • 1 tablespoon fresh lemon juice
  • 1/4 teaspoon salt
  • 1/8 teaspoon ground white pepper
  • Sour cream (optional)

Preparation

  1. Melt butter in a Dutch oven over medium heat; add onions. Cook over medium heat, stirring occasionally, 35 minutes or until onion is lightly browned and very tender. Add garlic, and cook 1 minute. Add 1 cup broth, stirring to loosen browned bits from bottom of pan (can make ahead to this point. Remove onions from heat; cover and chill until ready to prepare remainder of soup). Stir in 2 cups broth; bring to a boil. Cover, reduce heat, and simmer 10 minutes. Remove from heat, and let cool 30 minutes.
  2. Meanwhile, heat oil in a large skillet over medium-high heat. Add mushrooms, and cook 8 to 10 minutes, stirring once or twice, until mushrooms are lightly browned and liquid has evaporated; stir in 1/2 teaspoon salt. Remove from heat, and set aside.
  3. Process soup, in batches, in a blender or food processor 2 minutes or until smooth, stopping to scrape down sides. Return to Dutch oven. Stir in remaining 1 1/2 cups broth and whipping cream; bring to a boil. Remove from heat; stir in sherry, lemon juice, 1/4 teaspoon salt, and pepper.
  4. To serve, ladle soup into individual bowls, and top evenly with mushrooms; dollop each with sour cream, if desired.
  5. Make Ahead: To jump-start this recipe, begin a day ahead and caramelize the onions up to the point of adding 2 cups of broth.
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