Turkish Red Lentil Soup with Mint: Easy Mercimek Çorbası

Turkish red lentil soup, often called mercimek çorbası, is a smooth, gently spiced soup made with red lentils, vegetables, and broth. This version gets its rounded flavor from cumin and a quick dried-mint butter stirred in at the end, with lemon served alongside to brighten each bowl.

Ingredients

1½ cups (285 g) dried red lentils, rinsed and drained
2 tablespoons (30 ml) olive oil or neutral cooking oil
1 medium yellow onion (about 150 g), finely chopped
1 medium carrot (about 75 g), peeled and diced
1 medium potato (about 170 g), peeled and diced
2 garlic cloves (about 6 g), finely chopped
1 tablespoon (16 g) tomato paste
1 teaspoon (2 g) ground cumin
½ teaspoon (1 g) sweet paprika
6 cups (1.42 L) low-sodium vegetable or chicken broth
1 cup (240 ml) water, plus more as needed to thin the soup
¾ teaspoon (4 g) fine salt, plus more to taste; use less if your broth is salty
¼ teaspoon (0.5 g) freshly ground black pepper
3 tablespoons (42 g) unsalted butter
1 tablespoon (about 2 g) dried mint
¼ teaspoon (about 0.5 g) Aleppo pepper, optional; use a small pinch of crushed red pepper instead if needed
1 lemon, cut into wedges, for serving
2 tablespoons (about 6 g) chopped fresh parsley or mint, optional garnish

Instructions

Prepare the ingredients (15 minutes). Rinse the lentils in a fine-mesh sieve under cool water until the water runs mostly clear, then drain well. Chop the onion, carrot, potato, and garlic, and measure the spices and liquids. Rinsing removes loose starch and dust; there is no need to soak red lentils.
Soften the onion (5 minutes). Warm the oil in a large, heavy-bottomed pot over medium heat. Add the onion and cook, stirring occasionally, until softened and translucent but not deeply browned. If it starts to stick or color too quickly, lower the heat and add a teaspoon of water.
Add the vegetables (3 minutes). Stir in the carrot and potato and cook for 3 minutes, turning them through the onion and oil. The vegetables do not need to brown. This brief start gives them a little time to pick up the savory base before the broth goes in.
Toast the aromatics (1 minute). Add the garlic, tomato paste, cumin, and paprika. Stir constantly for about 1 minute, until fragrant and the tomato paste darkens slightly. Keep the mixture moving so the garlic does not scorch; burnt garlic can make the whole pot taste bitter.
Simmer until tender (26 minutes). Pour in the broth and water, then add the rinsed lentils, salt, and black pepper. Stir and scrape the bottom of the pot, bring the liquid to a boil over medium-high heat (about 4 minutes), then lower the heat so it simmers gently. Cover with the lid slightly ajar and cook for 22 minutes, stirring once or twice. The lentils should collapse easily, and the carrot and potato should be tender when pierced with a fork. If the pot bubbles vigorously, reduce the heat to prevent sticking.
Blend the soup (2 minutes). Take the pot off the heat. Use an immersion blender to purée the soup until smooth, moving the blender around the pot so no large pieces remain. If using a countertop blender, let the soup cool briefly, blend in small batches, and leave the lid vent open while covering it with a folded towel; hot liquid expands and can force the lid off. Return the soup to the pot if needed.
Make the mint butter (2 minutes). In a small pan, melt the butter over low heat. Stir in the dried mint and Aleppo pepper, if using, and let the mixture foam gently for about 30 seconds. Do not let the butter brown heavily or the mint turn dark and bitter. Swirl the fragrant butter into the soup, taste, and adjust the salt and pepper. Add a splash of water or broth if you prefer a thinner consistency, then serve with lemon wedges.

Tips

Rinse, but do not presoak. Red lentils cook quickly and soften into the soup’s creamy texture without soaking. A rinse is enough. If your lentils are older and still firm after 22 minutes of simmering, keep cooking in 3-minute increments and add a little hot water if the soup is getting too thick.
Keep the simmer gentle. A hard boil can make lentils splatter, catch on the pot, and reduce the broth too quickly. Use a heavy pot, stir occasionally, and check the bottom while the soup cooks. The lentils should break down, but the soup should not become scorched or paste-like.
Choose the right mint and pepper. Dried mint is traditional in the finishing butter and gives a concentrated, earthy aroma. If it is unavailable, use 1 tablespoon (about 3 g) finely chopped fresh mint in the butter, adding it just before taking the pan off the heat; the result will taste fresher and less intense. Aleppo pepper is mildly fruity and not as hot as many red pepper flakes. Crushed red pepper is a practical substitute, but use less because it can add sharper heat.
Blend carefully and adjust at the end. The soup thickens as it stands, especially after chilling. Thin it gradually with hot broth or water rather than adding a large amount at once. Lemon is best added at the table so each person can choose how tangy to make their bowl.

Serving Suggestions

Serve the soup hot in bowls with a lemon wedge and, if you like, a little chopped parsley or fresh mint. Squeeze in lemon just before eating: its acidity balances the soft, earthy lentils and the richness of the butter. A small extra drizzle of the mint butter looks appealing, but the soup should still taste balanced rather than oily.

For a simple meal, offer warm flatbread, pide, or crusty bread for dipping. A side salad of cucumber, tomato, and parsley gives the table a cool, crisp contrast. You can also serve the soup as a first course before grilled vegetables, rice, or a main dish. Since lentils make it filling, a modest bowl with bread is often enough for lunch, while a larger serving works well for a light dinner.

Variations

There are many household and regional versions of Turkish lentil soup; ingredients and thickness vary, so this is one practical home-style approach rather than a claim to a single definitive version. For a more tomato-forward bowl, stir in one small grated tomato (about 100 g) with the tomato paste, or use ½ cup (120 ml) passata and reduce the water by the same amount. The added tomato makes the soup a little tangier and may give it a deeper color.

For a vegan version, use vegetable broth and replace the butter with 2 tablespoons (30 ml) olive oil. Warm the oil gently with the dried mint and pepper as directed; it will have a fruitier finish and lack the buttery richness, but still gives the soup its characteristic fragrant topping. To make the soup without potato, leave it out and add another ¼ cup (about 48 g) of red lentils. The result will be a little less starchy; check the texture and add broth or water as needed. You can also increase the cumin to 1½ teaspoons for a more pronounced earthy note, but add it gradually so it does not overwhelm the mint.

Storage and Reheating

Cool leftovers promptly and refrigerate them within 2 hours of cooking in shallow, covered containers. The soup keeps for 3–4 days in the refrigerator. It will thicken as the lentils absorb liquid, so stir in a little water or broth when reheating. Warm it in a covered saucepan over medium-low heat, stirring often, or microwave it in a covered microwave-safe bowl in short intervals, stirring between each interval. Reheat leftovers to 165°F (74°C), checking the temperature with a food thermometer.

For longer storage, freeze the soup in meal-size portions for up to 2–3 months for best quality. Leave a little room at the top of each freezer container for expansion, and label it with the date. Thaw it overnight in the refrigerator or reheat it directly from frozen over low heat with a splash of water, stirring as it loosens. The mint-butter topping is most fragrant freshly made, so if convenient, freeze the soup before adding it and prepare a fresh topping when serving.

Frequently Asked Questions

Can I make Turkish red lentil soup without a blender?

Yes. Red lentils naturally break down during simmering, so you can mash the soup thoroughly with a potato masher for a rustic texture. For a smoother result without an immersion blender, carefully transfer small portions to a countertop blender. Let the soup cool a little first, vent the lid, and blend in batches to avoid pressure from hot liquid.

Why is my lentil soup too thick?

Red lentils continue to absorb liquid as the soup sits, and potatoes also release starch, so a thick consistency is common. Stir in hot water or broth a little at a time until it reaches the texture you want, then taste and adjust the salt and lemon. If it seems thin, simmer it uncovered for a few minutes, stirring often, before serving.

Can I use green or brown lentils instead?

You can, but they do not break down as readily as red lentils and will give you a more textured soup. They also take longer to become tender, so follow the package guidance and expect to extend the simmer; add extra broth or water if needed. For the classic smooth texture and the timing in this recipe, stick with split red lentils.

Can I make it ahead?

Yes. Make the soup through blending, cool and refrigerate it, then reheat it gently when you are ready to eat. Because it thickens overnight, keep extra broth or water on hand. For the liveliest mint aroma, prepare the butter topping just before serving rather than stirring it into the whole batch in advance.

Is dried mint the same as fresh mint in this recipe?

They are not identical. Dried mint is more concentrated and earthy, which suits the brief warm-butter infusion; fresh mint tastes greener and brighter. If substituting fresh, use about 1 tablespoon chopped, add it at the very end, and avoid prolonged cooking. Lemon and a little fresh mint can also be served at the table alongside the dried-mint topping.

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