Ingredients

For roasted tomatoes and dressing

2 pt red grape or cherry tomatoes (1 1/2 lb)

3 large garlic cloves, left unpeeled

1/4 cup extra-virgin olive oil

1/4 cup warm water

1 teaspoon fresh lemon juice

1 teaspoon salt

1/4 teaspoon black pepper

For couscous

2 3/4 cups chicken broth

2 1/4 cups pearl (Israeli) couscous

1 tablespoon olive oil

1/2 cup Kalamata or other brine-cured black olives, pitted and chopped

1/3 cup chopped fresh flat-leaf parsley

1/4 cup chopped fresh mint

1 teaspoon chopped fresh thyme

Preparation

Roast tomatoes and make dressing: Preheat oven to 250°F.

Halve tomatoes through stem ends and arrange, cut sides up, in 1 layer in a large shallow (1-inch-deep) baking pan. Add garlic to pan and roast in middle of oven until tomatoes are slightly shriveled around edges, about 1 hour. Cool in pan on a rack 30 minutes.

Peel garlic and puree with oil, water, lemon juice, salt, pepper, and 1/2 cup roasted tomatoes in a blender until dressing is very smooth.

Make couscous: Bring broth to a boil in a 3-quart heavy saucepan and stir in couscous, then simmer, uncovered, 6 minutes. Cover pan and remove from heat. Let stand 10 minutes.

Spread couscous in 1 layer on a baking sheet and cool 15 minutes.

Transfer couscous to a bowl and stir in remaining ingredients, dressing, roasted tomatoes, and salt and pepper to taste.

Note: Roasted tomatoes, dressing, and couscous can be made 1 day ahead and kept separately, covered and chilled. Bring to room temperature before proceeding.