Made with three types of mushrooms, plus chicken stock, heavy cream, and egg yolks, this French-style mushroom soup is rich and delicious. Using a combination of different types of mushrooms adds to the flavor, texture, and look of the soup. You can buy a bag of mixed mushrooms or select the varieties you prefer; we used cremini, oyster, and shiitake mushrooms. The recipe originated in Martha’s first book, Entertaining, and is an elegant dish that’s a great way to start a dinner party.
Bryan Gardner
Directions
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Cook onions:
Cook onions in 4 tablespoons butter in a large stockpot over medium heat until soft, 4 to 5 minutes.
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Add flour and cook:
Stir in flour and cook over low heat for 4 minutes without browning.
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Add stock:
Add the stock, blending it completely with the flour.
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Add herbs and simmer:
Add the parsley, bay leaf, and thyme, and simmer for 20 minutes. Strain into a second pot.
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Cook cremini mushrooms in a skillet:
In a large skillet, heat remaining 4 tablespoons butter over medium heat. Add the cremini mushrooms and season with salt. Cook until softened.
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Add other mushrooms and cook:
Add the shiitake and oyster mushrooms. Season with salt and lemon juice and cook until mushrooms are deep golden brown, 8 to 10 minutes.
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Reheat stock mixture and whisk in yolks and cream:
Reheat stock mixture to a simmer. Whisk the egg yolks and cream until blended.
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Add cream mixture to soup carefully:
While whisking, slowly add a cupful of the hot soup into the cream mixture and add back to the soup and heat to just below a simmer (if the soup simmers, the yolks will curdle).
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Add mushrooms to soup:
Add the cooked mushroom mixture and stir to combine. Serve garnished with parsley.
