Slow-Cooked Tomato and Herb White Beans

Directions

1. 1.

   Soak beans overnight (8 to 12 hours) in water to cover by 2 inches or quick-soak (see cooks' note, below), then drain.

2. 2.

   Bring beans, water (6 cups), carrot, onion, and herb sprigs to a simmer in a 4-quart heavy pot, then simmer, partially covered, until beans are al dente, about 45 minutes. Add kosher salt, then continue to simmer until beans are tender, 45 minutes to 1 hour more.

3. 3.

   Cook bacon in a 12-inch heavy skillet over medium heat, stirring occasionally, until crisp, 6 to 8 minutes. Add oil and onion and cook, stirring occasionally, until onion is golden, about 12 minutes. Add garlic, kosher salt, and 1/4 teaspoon pepper and cook, stirring occasionally, until garlic is softened, about 2 minutes. Add tomatoes, tomato purée, and thyme and simmer, uncovered, stirring occasionally, until sauce is slightly thickened, about 30 minutes.

4. 4.

   Discard carrot and herb sprigs. Drain beans in a sieve set over a bowl, reserving cooking liquid, and return beans to pot. Add tomato sauce and 1 1/2 cups bean-cooking liquid and simmer, uncovered, stirring occasionally, until thickened, about 45 minutes.