Heat 1 tbsp. oil in a large saucepan over medium heat; add mirepoix and herbs. Cook until vegetables are soft (about 5 min.). Add lentils; cook and stir for 2 min. Add wine; cook until almost evaporated (4-5 min.). Pour in enough broth to cover lentils by 1"; bring to a boil. Reduce heat to medium-low; simmer until lentils are tender (about 60 min.), adding more broth or water a bit at a time as needed to keep lentils barely submerged. Cool slightly; discard bay leaf. Purée lentil mixture with garlic cloves in a food processor; with processor running, drizzle in remaining oil through pour spout. Stir in juice; season with salt and pepper.
Note: Red or yellow lentils will work, too, but will require less cooking liquid and less cooking time.