Sweet Potato and Lentil Soup
A hearty, warming soup that combines the natural sweetness of sweet potatoes with earthy red lentils. Everything simmers together in one pot until the lentils break down and the sweet potatoes turn tender and creamy. It's a simple, nourishing bowl that feels like a hug on a cold day, finished with a squeeze of fresh lemon juice to brighten all the flavors.
For 4 servings
- prep
Prep all the vegetables.
1.Peel and finely chop the onion.2.Peel and dice the carrot into small cubes.3.Dice the celery stalk.4.Mince the garlic cloves.5.Peel the sweet potatoes and cut into 1-inch cubes.6.Rinse the red lentils under cold water until the water runs clear, then drain. - saute · ~8 min
Sauté the aromatic base.
1.Heat the olive oil in a large pot over medium heat.2.Add the chopped onion and cook until softened and translucent, about 4 minutes.3.Stir in the garlic, carrot, and celery. Cook for 3 more minutes, stirring occasionally.4.Add the cumin powder and smoked paprika. Stir constantly for 30 seconds until fragrant.TIPDon't let the garlic burn — it turns bitter. Keep the heat at medium and stir frequently. - simmer · ~25 min
Simmer the soup until the lentils and sweet potatoes are tender.
1.Add the cubed sweet potatoes, rinsed lentils, and water to the pot.2.Stir in the salt and bring everything to a boil over high heat.3.Once boiling, reduce the heat to low, cover partially with a lid, and let it simmer gently.4.Cook for 20 to 25 minutes, stirring once or twice, until the lentils have broken down and the sweet potatoes are fork-tender. - mix
Finish and season the soup.
Remove the pot from the heat. Stir in the black pepper and fresh lemon juice. Taste and adjust salt if needed. For a creamier texture, use an immersion blender to partially blend the soup right in the pot — just a few pulses so it stays chunky.
TIPPartially blending releases the sweet potato starch and makes the soup velvety without adding any cream. - serve
Ladle into bowls, garnish with parsley, and serve hot.
What to keep in mind.
7 tips from the recipe — small details that make a real difference to the final dish.
- 1Rinse the red lentils until the water runs clear to remove excess starch and prevent grittiness.
- 2Sauté the cumin and smoked paprika for 30 seconds to bloom their essential oils and deepen flavor.
- 3Partially blend the soup with an immersion blender for a creamy texture without adding cream.
- 4Add the lemon juice only after removing the pot from heat to preserve its bright, fresh acidity.
- 5If the soup thickens too much on standing, thin it with a splash of hot water or vegetable broth.
- 6Let the soup cool completely before refrigerating; it keeps well for up to 4 days and flavors meld overnight.
- 7For a smoky kick, use a full teaspoon of smoked paprika instead of just a pinch.
Adapt it for your goals.
Creamy Coconut
Swap 1 cup of water for coconut milk and add 1 teaspoon of curry powder along with the cumin. This adds a luscious, tropical richness that pairs beautifully with the sweet potato.
Spicy HarissaSpicy Harissa
Stir 1-2 tablespoons of harissa paste into the sautéed aromatics before adding liquid. The smoky heat complements the sweet potato and lentils for a North African-inspired twist.
High ProteinHigh-Protein
Fold in 2 cups of cooked shredded chicken or chickpeas during the last 10 minutes of simmering. This boosts protein content without overpowering the soup's flavor profile.
Vegan CreamyVegan Creamy
Replace water with unsweetened oat milk or cashew milk, and add 2 tablespoons of nutritional yeast with the spices. This creates a dairy-free creamy soup with a subtle cheesy note.
Why this is on our healthy list.
Rich in Fiber
Sweet potatoes and red lentils are both excellent sources of dietary fiber, which aids digestion and helps maintain steady blood sugar levels.
High in Plant-Based Protein
Red lentils provide about 12 grams of protein per cooked cup, making this soup a satisfying option for vegetarian and vegan meals.
Packed with Vitamin A
Sweet potatoes are loaded with beta-carotene, which the body converts into vitamin A, essential for healthy vision and immune function.
Low in Saturated Fat
With only 1 tablespoon of olive oil for the whole pot, this soup is naturally low in saturated fat and heart-friendly.
Frequently asked questions
Red lentils are ideal because they break down quickly and create a creamy texture. Green or brown lentils will stay firmer and require a longer cooking time — add 10-15 more minutes and more liquid.
