Preparation Bring first 8 ingredients to boil in heavy large pot or Dutch oven over high heat. Reduce heat to medium-low and simmer until potatoes are very tender and soup thickens slightly, about 1 hour. Transfer 2 cups of soup to blender and puree. Return puree to pot. Season with salt, pepper and hot pepper sauce. (Can be prepared 1 day ahead and refrigerated. Reheat before continuing.) Ladle soup into bowls. Garnish with chopped chives and serve.
Preparation Bring first 8 ingredients to boil in heavy large pot or Dutch oven over high heat. Reduce heat to medium-low and simmer until potatoes are very tender and soup thickens slightly, about 1 hour. Transfer 2 cups of soup to blender and puree. Return puree to pot. Season with salt, pepper and hot pepper sauce. (Can be prepared 1 day ahead and refrigerated. Reheat before continuing.) Ladle soup into bowls. Garnish with chopped chives and serve.