Ina Garten's Hearty French Lentils: A Comforting Recipe for Everyone

Ingredients

• 1 cup French green Le Puy lentils
• 1 whole onion, peeled and stuck with 6 whole cloves
• 1 white turnip, cut in half
• 2 carrots, scraped and ½-inch-diced
• 1 leek, white and light green parts, sliced ¼ inch thick
• 2 tbsps (30 ml) plus ¼ cup (60 ml) good olive oil
• 2 tbsps (30 ml) red wine vinegar
• 1 tbsp (15 ml) kosher salt
• 1 tsp (5 ml) freshly ground black pepper
• 1 tsp (5 ml) minced garlic
• 4 tsps (20 ml) Dijon mustard
• 1 tsp (5 ml) unsalted butter