Chestnut Soup

Directions

1. 1
   In a 5- to 6-quart pan over high heat, frequently stir shallots, thyme, and 1/2 cup broth until vegetables are lightly browned, 5 to 7 minutes. Add 6 1/2 cups broth and chestnuts. Cover, bring to a boil, then reduce heat and simmer until chestnuts mash easily, about 30 minutes.
2. 2
   Whirl mixture, a portion at a time, in a blender until it is very smooth. Or, with a slotted spoon, skim chestnuts and vegetables from broth and puree in a food processor, then mix with broth in pan.
3. 3
   Measure soup. If you have less than 6 cups, add broth to make this amount and return to pan and stir until hot. If you have more, boil and stir until soup is reduced.
4. 4
   Ladle hot soup into bowls. Add a spoonful of sour cream to each and sprinkle with chives. Season with salt to taste.