Ingredients

• 2 tablespoons olive oil
• 1 large yellow onion , diced
• 2 stalks celery with leaves , diced
• 2 carrots , diced
• 1.5 teaspoons minced garlic
• 6 cups water
• 2 cups French green lentils
• 4 tablespoons chopped fresh parsley , divided
• 1 tablespoon salt , or more to taste
• 1 tablespoon ground coriander
• 1 tablespoon ground cumin
• 1.5 teaspoons ground black pepper
• 0.5 teaspoons cayenne pepper
• 1 cup all-purpose flour , Optional
• 0.25 cups butter , Optional
• 1 lemon , cut into wedges
• freshly ground black pepper

Instructions

1. 1 Heat olive oil in a large heavy-bottomed pot over medium heat. Cook and stir onion, celery, and carrots until slightly tender, about 5 minutes. Add garlic; cook and stir until fragrant, 30 seconds.
2. 2 Add water, lentils, 2 tablespoons fresh parsley, salt, coriander, cumin, black pepper, and cayenne pepper; stir to incorporate. Cover and simmer until lentils are tender, stirring occasionally, for 1 1/2 hours.
3. 3 Whisk flour and butter together in a small saucepan over medium-low heat; stir constantly until thickened and paste-like, about 10 minutes. Reduce heat to low, stirring every 2 to 3 minutes, until light brown, about 20 more minutes.
4. 4 Whisk flour paste into finished soup, a spoonful at a time, until smooth and creamy. Serve with lemon wedges, remaining 2 tablespoons parsley, and a sprinkle of freshly ground pepper.

Nutrition per serving