Stovetop Lentil Soup
This soup relies on a steady simmer until the lentils soften and the broth thickens naturally. By sautéing your aromatic base—onions, carrots, and celery—until the onions turn translucent before adding the dry lentils and stock, you build a foundation that gives the soup depth without needing long-simmered meat stocks.
Watch your liquid ratio
Lentils absorb water differently based on their age; keep an extra cup of warm stock nearby in case the soup thickens too much while the lentils soften.
- large heavy-bottomed pot
- wooden spoon
- chef's knife
What goes in.
- 1 cupbrown or green lentils, rinsed and picked over
- 1yellow onion, finely diced
- 2carrots, diced small
- 2celery stalks, diced small
- 3 clovesgarlic, minced
- 5 cupsvegetable or chicken stock
- 1 tspdried thyme
- 2 tbspolive oil
- to tastekosher salt and black pepper
Building the base
Cook your vegetables over medium heat until the onions lose their sharpness and the carrots soften slightly. This releases the sugars and builds a base that provides structure for the lentils.
The method.
Heat the oil
Place your pot over medium heat and add the olive oil. Once it shimmers, add the onions, carrots, and celery.
Sauté the base
Cook for about 7 minutes, stirring occasionally, until the onions are limp and starting to turn pale gold.
Bloom the garlic
Add the garlic and thyme. Stir for 60 seconds until the aroma fills the kitchen.
Simmer the lentils
Add the rinsed lentils and the stock. Bring the mixture to a gentle boil, then turn the heat to low.
Final cook
Cover partially and cook for 30 to 35 minutes. Test a lentil; it should be tender but hold its shape.
Season
Remove from heat and stir in salt and pepper. Let it sit for 5 minutes before serving.
Other turns to take.
Greens finish
Stir in two handfuls of baby spinach or chopped kale once the heat is turned off, letting the residual heat wilt them.
Bright finish
Add a squeeze of fresh lemon juice just before serving to sharpen the flavors.
When it doesn't go to plan.
Always rinse lentils under cold water to remove any dust or debris.
If the soup looks too thin after cooking, crush a small portion of the lentils against the side of the pot with your spoon to release starch and thicken the broth.
Avoid adding salt until the very end; salt can toughen the skins of the lentils if added too early in the cooking process.
The ones that keep coming up.
Can I use red lentils?
Red lentils break down much faster and will turn into a porridge-like consistency; use brown or green lentils for a soup with identifiable texture.
How do I know if they are done?
They should be soft enough to smash against the roof of your mouth with no hard, chalky center remaining.
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