Lentil soup

• 3 tbspolive oil
• 1onion · finely diced
• 2carrots · finely diced
• 2celery stalks · finely diced
• 3 clovesgarlic · minced
• 1 1/2 cupsred lentils · rinsed
• 1 tbsptomato paste
• 1 1/2 tspground cumin
• 1 tspground coriander
• 1 tspsmoked paprika
• 1/2 tspground turmeric
• 1/4 tspchili flakes
• 6 cupsvegetable stock
• 1/2lemon · juiced
• salt and black pepper · to taste
• 2 tbspfresh parsley · chopped, to finish

Method

1. 1

   Pick your lentil, because it decides the whole texture

   Red lentils break down completely as they cook, which is what gives you that naturally creamy, almost pureed soup with no blending or cream needed. Brown and green lentils hold their shape and give you a brothier, more rustic soup with distinct bites. For the silky Mediterranean-style bowl this recipe is built around, reach for red or yellow lentils. If all you have is brown or green, the method still works; just expect texture rather than creaminess and add a little more liquid, since they drink less of it.

2. 2

   Build a real soffritto, do not rush the base

   Finely dice onion, carrot, and celery and cook them gently in a good glug of olive oil over medium heat until soft and just starting to colour, about eight to ten minutes. This is the flavour foundation of the entire pot, the same slow-cooked vegetable base behind a good minestrone or our butternut squash soup. Skipping it or rushing it over high heat is exactly why so many lentil soups taste flat and one-note. Add the garlic for the last minute so it turns fragrant without burning bitter.

3. 3

   Bloom the spices in the oil before any liquid goes in

   Ground cumin and coriander with a pinch of chilli flakes and a little smoked paprika are what turn plain lentils into a soup with real backbone. Stir them into the softened vegetables and let them toast in the oil for thirty seconds until fragrant. Blooming the spices in fat wakes up their aroma in a way that dumping them into water never will, and it is the difference between a warm, layered soup and one that tastes of dusty raw spice. A pinch of turmeric adds colour and a clean anti-inflammatory note.

4. 4

   Brown a spoon of tomato paste for savoury depth

   Push the vegetables aside, drop a tablespoon of tomato paste into the bare pan, and let it fry and darken for a minute before stirring it through. This quick browning caramelises the sugars in the paste and builds a savoury, almost meaty depth that makes a vegan soup taste like it has been simmering all day. It is a small step that does a huge amount of work. Stir it into the spiced vegetables until everything is coated and rusty red before the lentils go in.

5. 5

   Rinse the lentils, but skip the soaking

   Unlike dried beans, lentils need no soaking, which is the whole reason this soup is a weeknight option and not a weekend project. Just tip them into a sieve and rinse under cold water, picking out the occasional tiny stone or shrivelled one. Rinsing washes off the dusty starch that can make the soup cloudy and gluey. Add the rinsed lentils straight to the pot with the vegetables and let them toast for a moment in the spiced oil before you add the stock.

6. 6

   Simmer gently, and salt at the right time

   Add vegetable stock, bring it up to a boil, then drop it to a gentle simmer and cook uncovered until the lentils are soft, about 20 to 25 minutes for red lentils and a little longer for brown or green. Keep it at a lazy simmer rather than a hard boil so it does not catch on the bottom. Add most of your salt toward the end once the lentils are tender, since salting hard from the start can occasionally keep them from softening and makes it easy to over-season a pot that is still reducing.

7. 7

   Blend half for body, or leave it as it lands

   Red lentils will already give you a thick, creamy pot, but for an even silkier texture you can blend a few ladles of the soup and stir it back in, or pulse an immersion blender briefly straight in the pot leaving plenty whole. This gives you the best of both, a creamy base carrying a bit of texture. If you used brown or green lentils and want it smoother, blend a third of it. Adjust the consistency with a splash more hot stock or water; it thickens a lot as it sits.

8. 8

   Finish with lemon and good olive oil, this is not optional

   Off the heat, squeeze in the juice of half a lemon and stir it through, then taste; this bright acid is the single step that turns a heavy, beige pot into a soup that tastes alive, and it is the note that defines Mediterranean and Middle Eastern lentil soups. Finish each bowl with a thread of your best olive oil, a little more chilli, and torn parsley or coriander. Serve it hot with warm flatbread. It keeps five days in the fridge and only tastes better on day two.