Ingredients

1/4 cup plus 2 tablespoons olive oil 

2 medium onions, coarsely chopped 

12 large garlic cloves 

2 celery stalks, coarsely chopped 

1/4 cup chopped fresh flat-leaf parsley 

2 tablespoons coarsely chopped fresh lovage, or celery leaves 

1 tablespoon plus 1 teaspoon coarse salt 

6 pounds tomatoes, chopped 

1 to 1 1/2 cups homemade or low-sodium store-bought chicken stock 

1/2 cup thinly sliced fresh basil leaves 

Crostini, for serving

Preparation

Heat oil in a large pot over medium heat. Add onions, garlic, celery, parsley, lovage, and salt. Cook, stirring, until onions are translucent, about 5 minutes. Stir in tomatoes and stock; bring to a boil. Reduce heat; simmer until tomatoes are soft and mixture is slightly reduced, 15 to 20 minutes. Stir in basil; cook until fragrant, about 5 minutes.

Pass soup through the medium plate of a food mill set over a large bowl; discard solids. Reheat; serve with crostini.