Ingredients
2 pounds beefsteak or plum tomatoes, cored and quartered
1 1/2 cups canned tomato juice
1 tablespoon finely grated, peeled fresh ginger
1 teaspoon ground coriander
1 teaspoon sugar
2 tablespoons extra-virgin olive oil
4 tablespoons freshly squeezed lime juice (from 2 to 3 limes)
Coarse salt and ground pepper
1/2 cup plain low-fat yogurt
Flatbread, for serving (optional)
Preparation
Working in two batches, place in a blender tomatoes, tomato juice, ginger, coriander, sugar, oil, and 3 tablespoons lime juice; puree on high speed until liquefied. Pour batches into a large bowl. Season generously with salt and pepper; refrigerate until cold, about 1 hour. Before serving, taste for seasoning. If desired, thin with cold water.
In a small bowl, whisk yogurt and remaining tablespoon lime juice until smooth; season with salt and pepper. Ladle soup into four serving bowls; top each with a dollop of yogurt and, if desired, serve with toasted flatbread.