There is a Tuesday kind of tired where even chopping feels like a project, but you still want something warm that tastes like home. That is the night I lean on instant pot lentil soup with masoor: one pot, predictable timing, and a bowl that feels like a hug without standing over a simmering pan for an hour.
This version sits in the middle of a thin brothy soup and a thick dal. Red lentils break down quickly in pressure, so you get body without a long second simmer. I finish with lemon and fresh coriander because that bright edge is what keeps me from feeling like I only ate “protein mush.” If your Instant Pot has ever yelled Burn at you with tomatoes and lentils in the same pot, we talk about deglazing and liquid order below. That one note alone saved my weeknight sanity.
Come cook a pot with me. If you already love dal nights, this is the same pantry story in a spoonable soup shape.
What is masoor, and why it loves the Instant Pot?
Masoor dal (split red lentils) is the small coral-colored lentil you often see in tadka dal and quick khichdi. Unlike whole brown or green lentils, split masoor cooks fast and softens into a creamy base when it has enough liquid and time. That behavior is exactly what you want in a pressure-cooker soup: fewer minutes at pressure, less guesswork, and a texture that reads as “soup” rather than a firm lentil salad. For more iron-friendly vegetarian ideas beyond this bowl, browse our Iron Rich Vegetarian Recipes hub when you are planning the week.
In our kitchen this soup is not trying to replace a festive dal makhani moment. It is the practical cousin: lighter, broth-forward, still warmly spiced. If you want a thicker spinach-forward dal for rice, our Palak Dal Recipe is still the anchor I send friends to first.
Why you’ll love this recipe
- Weeknight timing: sauté, pressure, finish. Most of the clock is hands-off.
- Vegetarian protein that feels complete with bread or a simple rice on the side.
- Naturally vegan and gluten free as written, as long as your spice brands work for your household (always scan labels if you need strict GF).
- Freezer friendly in single portions for lunches that reheat without drama.
Tip from my kitchen: if the soup looks too thick right after pressure, whisk in hot water a splash at a time before you add extra salt. Lentils drink liquid as they cool.
Before you pressurize (Burn sensor, salt, thickness)
Tomatoes + lentils + not enough thin liquid is the classic Burn path. I sauté aromatics and spices first, then I scrape the pot bottom with a flat spoon after adding tomatoes until nothing feels stuck. Only after that do I add lentils and broth. If your model runs hot, skip reducing tomatoes to paste in the pot; use chopped tomato and stop when the base looks jammy, not dry.
Salt in two passes. Broths vary wildly in sodium. I season lightly before pressure, then adjust after cooking when the volume and thickness are final.
Thickness is a choice. Right after pressure, masoor can look almost puréed already. For extra silk, use an immersion blender for ten to fifteen seconds. For more texture, skip blending and simply whisk vigorously.
Step-by-step Instant Pot lentil soup
These steps assume a 6-quart Instant Pot style cooker. Timings are a starting point; if your lentils are older, add one to two minutes at pressure.
Step 1: Rinse the lentils
Rinse masoor in a fine sieve under cold water until the water runs mostly clear. Drain well. Wet lentils clumping on the bottom can scorch, so give them a real drain, not a quick shake.
Step 2: Sauté aromatics
Set the pot to Sauté (Normal). Add oil. When it shimmers, add cumin seeds and let them sizzle ten to fifteen seconds until fragrant. Add diced onion with a pinch of salt and cook until softened and lightly golden at the edges, stirring often. Add ginger-garlic paste (or minced ginger and garlic) and cook until the raw smell fades.
Step 3: Build the tomato base
Add chopped tomatoes (or canned diced tomatoes with juices). Cook, stirring and scraping the base, until the mixture looks like a loose jam and the pot bottom feels clean when you drag a spoon across it. Stir in turmeric, coriander powder, Kashmiri red chili powder (or mild paprika for color without heat), and garam masala for thirty seconds. If anything sticks, splash a tablespoon of water and scrape again.
Step 4: Add lentils and liquid
Add the drained masoor, then pour in vegetable broth or water. Stir once so lentils are submerged and nothing is sitting dry on the base. Lock the lid, set the valve to sealing, and pressure cook on High for 8 minutes.
Step 5: Release and taste
Let pressure release naturally for 10 minutes, then quick-release any remaining steam. Stir well. The soup should be creamy with soft lentils. If it is too thick, thin with hot water or broth. If you want restaurant-smooth texture, blend briefly with an immersion blender.
Step 6: Finish and serve
Stir in lemon juice and a handful of chopped coriander. Taste for salt, heat, and tang. If you want a tadka finish, heat a tiny pan of ghee or oil with hing, extra cumin, and kashmiri chili (whole or flakes), pour it over the soup in the pot or over each bowl.
Serving ideas that fit real weeknights
- With Instant Pot Jeera Rice when you want a simple Indian plate without a second pressure cycle.
- With a warm roti or crusty bread and a crunchy salad on the side.
- Beside Mag Ni Chutti Dal on a “two dal weekend” when one pot is soup and one is thicker for rice lovers.
If you are building a soup rotation, keep our greens-forward palak dal bookmarked for the nights you want spinach dal instead of a brothy bowl.
FAQs
Q1. Can I use brown or green lentils instead of masoor?
Not without changing the method. Whole lentils need more liquid and a longer pressure time, and they hold shape. This recipe is written for split red lentils that break down quickly.
Q2. Why did I get a Burn notice?
Usually a dry tomato step, a stuck fond you did not scrape up, or not enough thin liquid on the bottom before pressure. Cancel, stir in a half cup of hot water, scrape the base aggressively, and resume with the same time.
Q3. Is this vegan as written?
Yes, if you use oil and vegetable broth. Optional tadka ghee is dairy; use oil for a fully vegan finish.
Q4. Can I freeze this soup?
Yes. Cool completely, freeze flat in bags or in jars with headspace. Thaw overnight in the fridge and reheat with a splash of water; whisk to bring the texture back.
Q5. Can I make this without onion and garlic?
You can lean on asafoetida (hing) in oil for savoriness and use more ginger and tomato. Flavor will be different but still warm.
Q6. Can I add coconut milk?
Stir in a small amount after pressure for richness, then warm through on Sauté Low without boiling hard, which can separate coconut milk in some brands.
If you try this, tell me how you finished yours: plain and lemony, or with a crackling tadka on top? I like both depending on how spicy the rest of the meal is.
Instant pot lentil soup is one of those recipes I want in the rotation when calendars look mean but dinner still deserves a little care.
Made this? Share a photo and tag @petitepaprika on Instagram. I love seeing your kitchen creations.
Instant Pot Lentil Soup (Masoor Dal Soup, Weeknight Easy)
Equipment
- Instant Pot or electric pressure cooker (6-quart tested)
- Immersion blender (optional)
Ingredients
For the soup
- 2 tablespoons neutral oil or light olive oil
- 1 teaspoon cumin seeds
- 1 medium onion finely diced
- 1 tablespoon ginger-garlic paste
- 2 medium tomatoes or 400 g canned diced tomatoes with juices; finely chopped
- 1 cup split red lentils masoor dal; rinsed and drained
- 5 cups low-sodium vegetable broth or water
- 1/2 teaspoon turmeric powder
- 1 teaspoon coriander powder
- 1/2 to 1 teaspoon Kashmiri red chili powder or mild paprika
- 1/2 teaspoon garam masala
- Fine salt to taste (season in two passes)
To finish
- 1 to 2 tablespoons lemon juice
- 1/4 cup chopped fresh coriander
- 1 teaspoon kasuri methi optional; crushed between palms
Optional tadka
- 1 tablespoon ghee or neutral oil
- 1/4 teaspoon hing asafoetida; optional
- 1/2 teaspoon cumin seeds
- 1 to 2 dried red chilies or a pinch of red chili flakes
Instructions
Rinse and drain
- Rinse masoor in a fine sieve under cold water until the water runs mostly clear. Drain well so lentils do not clump on the bottom of the pot.
Sauté aromatics
- On Sauté (Normal), heat oil until shimmering. Add cumin seeds; sizzle 10 to 15 seconds until fragrant. Add onion with a small pinch of salt; cook until softened and lightly golden at the edges, stirring often.
- Add ginger-garlic paste and cook until the raw smell fades.
Build the tomato base
- Add chopped tomatoes (or canned with juices). Cook, stirring and scraping the pot base, until the mixture looks like a loose jam and the bottom feels clean when you drag a spoon across it.
- Stir in turmeric, coriander powder, Kashmiri chili or paprika, and garam masala for about 30 seconds. If anything sticks, splash 1 tablespoon water and scrape again.
Pressure cook
- Add drained masoor and broth or water. Stir once so lentils are submerged and nothing sits dry on the base. Seal the lid; set valve to sealing. Pressure cook on High for 8 minutes.
Release and adjust
- Natural release 10 minutes, then quick-release remaining steam. Stir well. Thin with hot water or broth if too thick. For extra-smooth soup, blend briefly with an immersion blender (about 10 to 15 seconds).
Finish
- Stir in lemon juice and coriander. Taste and adjust salt, heat, and tang. For optional tadka, heat ghee or oil in a small pan; add hing if using, cumin, and chili; sizzle briefly; pour over the soup in the pot or over each bowl. Serve hot.
Notes
- Burn message: keep the tomato step moist, deglaze thoroughly, and use enough thin liquid before pressure.
- Brown or green lentils are not a direct swap; they need more liquid and a longer pressure time.
- Vegan: use oil and vegetable broth; skip ghee in tadka or use oil only.
- Storage: refrigerate up to 4 days in an airtight container; freeze up to 2 months. Reheat with a splash of water and whisk.
