Preparation Cook onion in oil with spices in a 3-quart heavy saucepan over moderate heat, stirring occasionally, until onion is softened and begins to brown, 4 to 5 minutes. Coarsely chop tomatoes and add to onion mixture with reserved juices, broth, honey, 1 tablespoon parsley, and 1 tablespoon cilantro, then bring to a boil. Transfer soup to a metal bowl set in a larger bowl of ice and cold water. Cool soup, stirring occasionally, until cold, 15 to 20 minutes. Stir in lemon juice and salt and pepper to taste, then stir in remaining parsley and cilantro.
Preparation Cook onion in oil with spices in a 3-quart heavy saucepan over moderate heat, stirring occasionally, until onion is softened and begins to brown, 4 to 5 minutes. Coarsely chop tomatoes and add to onion mixture with reserved juices, broth, honey, 1 tablespoon parsley, and 1 tablespoon cilantro, then bring to a boil. Transfer soup to a metal bowl set in a larger bowl of ice and cold water. Cool soup, stirring occasionally, until cold, 15 to 20 minutes. Stir in lemon juice and salt and pepper to taste, then stir in remaining parsley and cilantro.