Spiced Red Lentil Soup with Yogurt
A warm, velvety red lentil soup infused with earthy cumin, turmeric, and a gentle kick of black pepper. Blended until silky smooth, then finished with a swirl of cool, tangy yogurt that cuts through the richness. A simple, deeply comforting bowl that works as a light lunch or a starter on chilly evenings.
For 4 servings
- prep · ~2 min
Wash the red lentils.
Place the red lentils in a fine mesh sieve and rinse under cold running water until the water runs clear. Set aside to drain.
- saute · ~8 min
Build the aromatic base.
1.Melt the butter in a large pot over medium heat.2.Add cumin seeds and let them sizzle until fragrant (30 seconds).3.Add chopped onion and sauté until soft and translucent (4-5 minutes).4.Add minced garlic and cook until the raw smell disappears (1 minute).5.Stir in tomato paste, turmeric, black pepper, and red chili powder. Cook, stirring constantly, for 1 minute.TIPStir the tomato paste continuously so it caramelizes without burning. - simmer · ~25 min
Cook the lentils.
1.Add the rinsed lentils, diced carrot, salt, and 4 cups of water to the pot.2.Bring to a rolling boil over high heat, then reduce heat to low.3.Cover and simmer gently until lentils are completely tender and falling apart (20-25 minutes).4.Skim off any white foam that rises to the surface during cooking.TIPDon't add the salt before the lentils are tender — it can toughen the skins. - mix · ~2 min
Blend until silky smooth.
Remove the pot from heat. Use an immersion blender directly in the pot and blend until the soup is completely smooth and velvety with no visible lentil pieces. If the soup is too thick, stir in a splash of warm water to reach your desired consistency.
TIPFor the smoothest texture, blend for a full 2 minutes. A countertop blender works too, but let the soup cool slightly first. - simmer · ~3 min
Finish and adjust seasoning.
Return the blended soup to a gentle simmer for 2-3 minutes. Taste and adjust salt if needed.
- serve · ~1 min
Ladle into bowls, swirl in yogurt, and serve.
1.Ladle the hot soup into serving bowls.2.Add a generous swirl of whisked yogurt on top.3.Sprinkle with a tiny pinch of dried mint.4.Finish with an extra crack of black pepper if desired.TIPFor an extra layer of flavor, mix 1 tsp of dried mint into the yogurt before swirling.
What to keep in mind.
7 tips from the recipe — small details that make a real difference to the final dish.
- 1Blend the soup for a full 2 minutes with an immersion blender for the silkiest texture.
- 2Skim off the white foam that rises during simmering to keep the soup clear and clean-tasting.
- 3Toast the cumin seeds in butter until fragrant before adding onions to deepen their nutty flavor.
- 4Stir the tomato paste continuously while cooking to caramelize it slightly without burning.
- 5Add salt only after the lentils are fully tender, as early salting can toughen their skins.
- 6For a thicker soup, reduce water to 3 1/2 cups; for a thinner soup, add an extra splash of warm water after blending.
- 7Make ahead: the soup keeps well in the fridge for 4 days and freezes beautifully for up to 3 months.
Adapt it for your goals.
Vegan
Replace butter with 2 tbsp olive or coconut oil, and use a thick plant-based yogurt (like coconut or soy) for the swirl. The soup remains creamy and comforting.
spicy harissaSpicy harissa
Stir 1-2 tsp harissa paste into the aromatic base along with the tomato paste for a North African heat that complements the cumin and turmeric.
lemony freshLemony fresh
Add 2 tbsp fresh lemon juice after blending and garnish with fresh cilantro instead of dried mint for a bright, citrusy finish.
high proteinHigh protein
Swap 1 cup of water for bone broth or vegetable stock, and top each bowl with a poached egg or shredded rotisserie chicken for a heartier meal.
gluten freeGluten free
This recipe is naturally gluten-free. Serve with gluten-free flatbread or roasted chickpeas for crunch.
Why this is on our healthy list.
Rich in Plant-Based Protein
Red lentils provide a solid dose of plant protein, making this soup a satisfying option for vegetarians and vegans when adapted.
High in Dietary Fiber
Lentils and carrots deliver soluble and insoluble fiber that supports healthy digestion and keeps you full longer.
Natural Anti-Inflammatory Spices
Turmeric and cumin are known for their anti-inflammatory properties, adding both flavor and wellness benefits to every bowl.
Low in Saturated Fat
With only 2 tablespoons of butter for the whole pot, this soup is low in saturated fat and can be made even leaner with a plant-based swap.
Frequently asked questions
No, brown or green lentils hold their shape and won't break down into a creamy puree. Stick with red lentils (or yellow lentils) for the silky texture.
