North African spices combine with a touch of honey and lemon in a refreshing summer soup.

Ingredients

　　1 small onion, chopped

　　2 tablespoons olive oil

　　1 teaspoon paprika

　　1/4 teaspoon ground ginger

　　1/4 teaspoon ground cumin

　　Scant 1/4 teaspoon ground cinnamon

　　1 (14- to 16-ounce) can whole tomatoes in juice, drained and juices reserved

　　1 3/4 cups chicken broth (14 fluid ounces)

　　2 teaspoons honey

　　2 tablespoons chopped fresh parsley

　　2 tablespoons chopped fresh cilantro

　　1/2 teaspoon fresh lemon juice, or to taste

　　Garnish: lemon slices

　　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.