- 3 pounds vine-ripened tomatoes (about 8 medium)
- 2 teaspoons balsamic vinegar, or to taste
- 1 teaspoon sugar, or to taste
- 1 teaspoon fresh lemon juice, or to taste
- 1 1/2 cups ice water
- 1 tablespoon finely chopped fresh tarragon leaves
- 8 vine-ripened yellow cherry tomatoes
- 1/4 cup finely chopped zucchini
- 1/4 cup finely chopped red onion
- Accompaniment:Baguette Toasts
- Chop tomatoes and in a food processor purée with vinegar, sugar, and lemon juice until smooth. Pour purée through a sieve into a bowl, pressing hard on solids. Discard solids. Stir in ice water and salt and pepper to taste. Soup may be made 1 day ahead and chilled, covered. Reseason soup before serving.
- Stir tarragon into soup and thinly slice cherry tomatoes.
- Serve soup sprinkled with tomatoes, zucchini, and onion, and with toasts on the side.