Turkish Lentil Soup Recipe: Easy Red Lentil Çorbası

Turkish lentil soup, or mercimek çorbası, is a smooth, gently spiced soup made with red lentils, vegetables and stock, usually finished with lemon. This straightforward stovetop version uses familiar ingredients and cooks in one pot, with a quick paprika-butter drizzle to add warmth at the table.

Ingredients

1½ cups (300 g) dried red lentils, rinsed and drained
1 medium onion (about 150 g), finely chopped
1 medium carrot (about 100 g), peeled and diced into small pieces
1 small potato (about 150 g), peeled and diced into small pieces
2 tablespoons (30 ml) olive oil
1 tablespoon (16 g) tomato paste
1 teaspoon (2 g) ground cumin
½ teaspoon (1 g) sweet paprika, plus ½ teaspoon (1 g) for the finishing butter
¼ teaspoon (0.5 g) ground black pepper
6 cups (1.4 L) vegetable stock, preferably lower-salt, plus a little extra if needed
1 teaspoon (6 g) fine salt, or less if the stock is salty
1 tablespoon (14 g) unsalted butter
½ teaspoon (0.5 g) dried mint, optional
1 lemon, cut into wedges, for serving
2 tablespoons (8 g) chopped flat-leaf parsley, optional
¼ teaspoon (0.5 g) Aleppo pepper or mild chilli flakes, optional

Instructions

Prepare the ingredients. Rinse the lentils in a sieve under cold running water until the water is mostly clear, then drain well. Chop the onion, carrot and potato into small, fairly even pieces so they soften at about the same rate. This preparation takes about 15 minutes.
Soften the onion. Warm the olive oil in a large, heavy-based saucepan over medium heat. Add the onion and cook for about 4 minutes, stirring occasionally, until soft and translucent but not browned. If it starts to catch, lower the heat and add a teaspoon of water.
Cook the vegetables and spices. Stir in the carrot and potato and cook for 2 minutes. Add the tomato paste, cumin, the first ½ teaspoon of paprika and black pepper. Stir constantly for 2 minutes, until the tomato paste darkens slightly and the spices smell fragrant. Avoid letting the spices scorch, as burnt paprika can taste bitter.
Add the lentils and stock. Tip in the drained lentils, pour in the stock and add the salt. Stir well, scraping the bottom of the pan to loosen any tomato paste. Bring the soup to a gentle boil, then reduce the heat so it simmers steadily. Leave the lid slightly ajar to limit splashes and allow some steam to escape.
Simmer until tender. Cook for 25 minutes, stirring every few minutes, especially near the end. The lentils should break down easily and the carrot and potato should be soft when pierced with a fork. If the bottom begins to stick, lower the heat and stir; add a splash of water or stock if the soup becomes thicker than you want. The simmering time is included in the stated cooking time.
Blend the soup. Take the pan off the heat. Use a stick blender to purée the soup until smooth, moving the blender around the pan and keeping its head submerged to avoid hot splashes. This takes about 2 minutes. Alternatively, let the soup cool slightly and blend it in batches in a countertop blender, following the blender’s instructions for hot liquids. Return it to the pan if you used a separate blender.
Make the paprika butter and finish. In a small pan, melt the butter over low heat. Stir in the remaining ½ teaspoon of paprika and the dried mint, if using, and warm for about 2 minutes; do not let the butter brown or the paprika fry hard. Stir half of this mixture into the soup, then taste and adjust the salt. The soup should pour easily from a ladle; loosen it with extra stock or hot water if needed. Serve with the remaining butter mixture, lemon wedges and optional parsley or Aleppo pepper.

Tips

Rinse, but do not soak, the lentils. Rinsing removes dust and loose starch; soaking is unnecessary for split red lentils and would change the timing. If the lentils are old and still firm after the vegetables are tender, simmer for a few extra minutes and add liquid as needed.
Keep the pieces small. Dicing the carrot and potato into roughly 1 cm pieces helps them cook through in 25 minutes. Larger chunks may remain firm when the lentils have already softened, while very small pieces can disappear into the soup sooner.
Use stock carefully. A lower-salt vegetable stock makes it easier to control seasoning, since stock concentration varies. For a richer, less savoury-tasting result, replace some stock with water; for a deeper flavour, use chicken stock instead. Check the label if you need the soup to be vegetarian.
Adjust the consistency after blending. Red lentils thicken as they stand, so aim for a soup that is a little looser than your preferred serving texture. Add hot stock or water gradually rather than pouring in a large amount at once.

Serving Suggestions

Serve the soup hot in bowls with a lemon wedge for each person. A squeeze of lemon brightens the mellow lentils and cumin, so offer it at the table rather than adding all the juice to the pot; people can adjust the sharpness to taste. Spoon a little paprika butter over each bowl just before serving, and add chopped parsley or Aleppo pepper if you like a fresh or gently chilli-spiced finish.

Warm flatbread, pide or crusty bread makes a useful accompaniment for dipping. For a fuller meal, serve the soup alongside a simple salad of cucumber, tomato and herbs, or add a small plate of olives and sliced vegetables. The soup is filling on its own as a starter or light lunch, but bread makes it more substantial. If serving several people, keep the soup warm over very low heat and add a splash of hot water if it thickens while waiting; avoid letting it boil hard, which can make the bottom catch.

Variations

Turkish mercimek çorbası has many household and regional versions, so the vegetables and seasonings vary. This recipe uses carrot and potato to give the soup body and a mild sweetness. For a simpler version, leave out the potato and use an extra 75 g (about ¾ cup) of red lentils; the result will be thicker and more lentil-forward, so keep extra stock nearby. You can also replace the potato with an equal weight of peeled celeriac, which gives a more earthy flavour.

Dried mint is a familiar seasoning in Turkish cooking, but it is optional here. If you cannot find it, leave it out rather than substituting a large amount of fresh mint, which tastes brighter and less savoury. Aleppo pepper, sometimes labelled pul biber, gives a mild, rounded warmth to the finishing butter. Mild chilli flakes are a practical substitute, but they may taste sharper; start with a pinch and add more only after tasting. For a dairy-free soup, use olive oil in place of the finishing butter. The topping will be less creamy but still fragrant.

For a more pronounced tomato flavour, increase the tomato paste to 1½ tablespoons (24 g). If you prefer a lighter, less tomato-forward soup, use 2 teaspoons (10 g) instead. You can use chicken stock if the soup does not need to be vegetarian, or water for a gentler flavour. Whichever liquid you choose, add salt gradually and taste after blending, because the finished soup’s thickness can make its seasoning seem more concentrated.

Storage and Reheating

Cool leftovers promptly and refrigerate them within 2 hours of cooking, in a covered container. The soup keeps for 3–4 days in the refrigerator. It thickens as it cools, so stir in a little water or stock when reheating. Warm it in a saucepan over medium-low heat, stirring often until steaming throughout; for food safety, reheat leftovers to 165°F (74°C), checking with a food thermometer. If using a microwave, cover the bowl loosely, stir partway through and check the temperature in more than one place.

To freeze, cool the soup and portion it into freezer-safe containers, leaving a little room for expansion. Freeze for up to 3 months for best quality. Thaw overnight in the refrigerator, then reheat as above, or reheat from frozen gently in a covered saucepan with a splash of water, stirring as the soup loosens. Add the lemon and fresh parsley after reheating, rather than freezing them in the soup. Do not leave cooked soup at room temperature for extended storage.

Frequently Asked Questions

Do I need to soak red lentils before making Turkish lentil soup?
No. Split red lentils cook quickly and soften during the simmer, so rinsing is enough. Soaking can make them break down faster and may leave you with a thicker soup than intended.

Can I make this soup without a blender?
Yes. The lentils and vegetables soften enough to mash with a potato masher for a rustic, textured soup. For a smoother finish without an electric blender, press portions through a sieve, though that takes more effort and will not be quite as quick.

Why is my lentil soup too thick?
Red lentils absorb liquid as they cook and continue to thicken after blending and cooling. Stir in hot stock or water a little at a time until it reaches a pourable consistency, then taste and adjust the salt and lemon at the table.

Can I make Turkish lentil soup ahead?
Yes. Make it up to 3 days ahead and refrigerate it promptly in a covered container. Reheat it to 165°F (74°C), stirring well, and thin it with stock or water if needed; add the lemon and finishing butter when serving for the freshest flavour.

Can I use green or brown lentils instead?
You can, but they do not behave like split red lentils: they hold their shape and take longer to become tender, so the soup will be less naturally smooth. For this recipe’s cooking time and texture, use dried red lentils; if using another type, follow its package cooking time and expect to blend for longer.

What can I use instead of tomato paste?
For a small amount of acidity and savouriness, use 2 tablespoons (30 ml) passata, but the soup may be slightly thinner and less concentrated. Cook it with the spices for an extra minute, and avoid adding a large quantity of chopped fresh tomato because it introduces more liquid and changes the balance.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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