Caramelized Onion Red Lentil Soup – Healthy Lentil Soup Recipe
This caramelized onion red lentil soup is a healthy lentil soup recipe that’s rich, hearty, and easy to make—perfect for a cozy, plant-based meal.
Equipment
- Large pot or Dutch oven
- Wooden spoon or spatula
- Measuring cups & spoons
- Sharp knife & cutting board
Ingredients
- 2 large onions, thinly sliced
- 1 cup red lentils, rinsed
- 3 cloves garlic, minced
- 1 tsp cumin
- 1 tsp coriander
- ½ tsp turmeric
- 4 cups vegetable broth
- 2 tbsp olive oil
- Salt & black pepper, to taste
- Juice of ½ lemon
- Fresh parsley or cilantro, for garnish
Instructions
- Caramelize Onions: Heat olive oil in a pot. Add onions and cook slowly over medium‑low heat, stirring occasionally, until golden brown (20 minutes).
- Add Garlic & Spices: Stir in garlic, cumin, coriander, and turmeric. Cook for 1–2 minutes until fragrant.
- Add Lentils & Broth: Stir in rinsed lentils and pour in broth. Mix well.
- Simmer: Bring to a gentle simmer. Cook uncovered for 20–25 minutes, stirring occasionally, until lentils break down into a creamy texture.
- Finish: Season with salt, pepper, and lemon juice. Garnish with fresh herbs. Serve hot with bread or salad.
Notes
- Caramelize Slowly: Don’t rush the onions—this step builds the soup’s signature sweetness.
- No Soaking Needed: Red lentils cook quickly and break down naturally.
- Make Ahead: Stores well in the fridge for 3–4 days or freezer for up to 3 months.
- Reheating Tip: Warm gently with a splash of broth to restore creaminess.
- Variations: Add coconut milk for richness, tomatoes for brightness, or garam masala for an Indian‑inspired twist.