CREAM OF LENTIL AND CHESTNUT SOUP WITH FOIE GRAS CUSTARD

Cream of Lentil and Chestnut Soup with Foie Gras Custard image

Categories Soup/Stew Milk/Cream Food Processor Egg Nut Poultry Bake Almond Lentil Winter Chestnut Simmer Gourmet

Yield Makes 6 servings

Number Of Ingredients 17

Ingredients

1 to 1 1/2 cups vegetable oil
4 very thin slices firm white sandwich bread, cut in 1/4-inch dice
4 fresh thyme sprigs
4 fresh parsley sprigs
4 fresh chives
2 bay leaves (not California)
1 cup dried lentilles de Puy (French green lentils; 7 ounces)
1/2 pound vacuum-packed chestnuts (1 1/2 cups)
10 cups cold water
2 1/2 teaspoons kosher salt
100 gm cooked pure-goose foie gras medallions (3 1/2 ounces)
2 whole large eggs
2 large egg yolks
1 1/2 cups heavy cream
1/3 cup sliced almonds, toasted
Special Equipment
6 (1 1/2-cup) ovenproof soup plates and kitchen string

Steps:

Make croutons:
Heat 1/4 inch oil in a 10-inch heavy skillet over moderate heat until hot but not smoking, then cook bread, stirring frequently, until deep golden, about 1 minute. Transfer with a slotted spoon to paper towels to drain.
Make soup:
Tie thyme, parsley, chives, and bay leaves together with kitchen string to make a bouquet garni. Bring lentils, chestnuts, water, bouquet garni, and 1 1/2 teaspoons salt to a boil in a 3-quart heavy saucepan. Simmer, partially covered, until lentils are tender, 20 to 25 minutes. Discard bouquet garni and reserve 2 cups cooking liquid. Purée remaining soup in 2 or 3 batches in a blender (use caution when blending hot liquids), then pour through a large sieve into a large bowl, discarding solids. Whisk in enough of reserved cooking liquid to reach a thin, creamy consistency, then season with salt and pepper. (Soup will continue to thicken as it stands; keep reserved cooking liquid on hand to thin as needed.)
Make custard while soup simmers:
Preheat oven to 325°F.
Purée foie gras, whole eggs, yolks, and remaining teaspoon salt in a food processor until very smooth. With motor running, add 1 cup cream in a stream and blend until just combined (do not overprocess, or cream will curdle).
Put soup plates on 2 large baking sheets, then divide custard among them. Bake in upper and lower thirds of oven until just set, 15 to 20 minutes (some custards will cook quicker than others; check each one). Cool to warm.
To assemble and serve:
Reheat soup, stirring occasionally, until very hot. Beat remaining ‚ cup cream until it just holds stiff peaks, then vigorously whisk whipped cream into soup. Pour soup over custards and sprinkle with croutons and almonds.