For a velvety smooth texture, pass the soup through a fine strainer after the mixture has been processed and before adding the cream.
Recipe information
Yield
serves 4 to 6
Ingredients
Preparation
Step 1
Preheat the oven to 350°F. Using a chestnut knife or a small paring knife, make an incision about 1/8 inch deep through the shell and into the flesh of each chestnut almost all the way around the circumference. Transfer to a chestnut pan or rimmed baking pan. Roast in the oven until the chestnuts are tender, about 35 minutes. Turn the oven off. Leaving the pan with the chestnuts in the oven, remove several at a time. Working quickly, place 1 chestnut in a towel, and, holding both, peel the chestnut while still hot. Remove and discard the shells and inner skin; set aside.
Step 2
Roughly chop all but 2 cremini and 2 shiitake mushrooms. Heat 1 tablespoon of the butter with the olive oil in a small stockpot over medium-high heat. Add the chopped mushrooms, and season with salt and pepper. Cook the mushrooms, stirring occasionally, until they start to brown, about 5 minutes. Add the onion, garlic, and thyme sprigs. Reduce heat to medium-low, and cook until the onions are translucent, about 8 minutes. Add all but 4 chestnuts, and cook until golden, about 5 minutes. Add the chicken stock and water, raise heat to high, and bring to a boil. Reduce heat, and simmer until the chestnuts are falling-apart tender, about 1 hour. Remove and discard the thyme sprigs, and let stand about 10 minutes.
Step 3
Let the soup cool slightly. Pass the soup through a sieve, and transfer the solids, reserving the liquid, to a food processor or blender. Puree, in batches, until very smooth. Add the reserved liquid, and process for 1 minute. Adjust the seasoning with salt and pepper, if necessary. Transfer to the stockpot, stir in the cream, and place over low heat until hot.
Step 4
Cut the 4 reserved chestnuts and the 4 reserved mushrooms into 1/4-inch-thick slices. Melt the remaining tablespoon butter in a small skillet over medium-high heat. Add the chestnuts and mushrooms, and cook until crisp and golden brown, 3 to 4 minutes. Divide the soup among soup bowls, and garnish with sautéed chestnuts, mushrooms, and thyme leaves.
