black lentil dahl soup
March 9, 2026

Black Lentil Soup

This Black Lentil Soup is such a filling meal that’s packed with fibre and plant-based protein. It has over 15g of fibre and 22g of protein per portion. Using dried lentils really keeps the costs down too, making this a really budget friendly meal.
prep time10 minutes
total time40 minutes
cook time30 minutes

It’s March and very cold here so I’m still craving warm soups and stews. This Black Lentil Soup is the perfect solution. It’s a such a nourishing meal that’s perfect for this weather. It’s very budget friendly too – using simple, affordable ingredients that come together really easily.

I’ve used mostly black lentils but added some red lentils in there too to give the soup creaminess. The black lentils hold their shape better while the red lentils break down and thicken the stock. 

Black and red lentils both provide lots of plant-based protein and fibre, making this soup really filling and nutritious. An easy, inexpensive option for easy lunches.

Nutrition Highlights

✅ Good source of plant-based protein – thanks to the combination of black and red lentils = 22g of protein per portion.

✅ High in fibre – 15g of fibre per portion; half your daily fibre target.

✅ Good source of iron – lentils are naturally rich in iron, an important mineral for energy production and oxygen transport in the body.

✅ Balanced and nourishing fats – coconut milk adds richness and fats that helps to keep it more filling and satisfying.

Why are lentils so good for you?

Lentils are one of the most nutritious and cheapest ingredients you can keep in your kitchen. 

They are naturally rich in plant-based protein, fibre and important minerals such as iron and folate, making them excellent for supporting energy, digestion and really your overall health.

Different varieties also bring slightly different qualities:

Red lentils cook quickly and soften easily, breaking down into a creamy texture.

Black lentils (often called beluga lentils) hold their shape better and add a slightly firmer texture and deeper flavour. 

Instead of black lentils you could also use green or brown lentils, which also keep their shape well when cooked.

For this soup, I’ve cooked both lentils from dry. It’s actually very easy. They don’t need to be soaked for hours like beans. I like to rinse them before simmering until tender. It’s also usually cheaper to buy dry lentils rather than pre-cooked.

Storage and Shelf Life

This Black Lentil Soup keeps very well and is ideal for batch cooking.

  • Store in an airtight container in the fridge for up to 3 days.
  • Allow to cool fully before refrigerating.
  • Can be frozen for up to 3 months.

Recipe Tips:

Make it spicier – The chilli is optional. However, if you prefer a hotter soup, add extra chilli flakes or a fresh chopped chilli when cooking the onion.

Change the texture – add extra stock for a looser soup or simmer longer for a thicker result.

Blend partially – for an even creamier texture, blend some of the soup while leaving some lentils whole.

Boost the veg – stir through spinach, kale or peas at the end for extra greens.

Prep ahead – this soup tastes even better the next day as the flavours deepen.

black lentil dahl soup

Black Lentil Soup

Helen Ridgeway Helen Ridgeway
This Black Lentil Soup is such a filling meal that’s packed with fibre and plant-based protein. It has over 15g of fibre and 22g of protein per portion. Using dried lentils really keeps the costs down too, making this a really budget friendly meal.
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Course Main Course, Soup
Servings 6
Calories 450 kcal

Ingredients
 

  • 300 g dried black lentils (1½ cups)
  • 200 g dried red lentils (1 cup)
  • 1 large onion
  • 2 medium carrots
  • 3 garlic cloves
  • Thumb sized piece of ginger
  • 1 tbsp olive oil
  • 2 tsp smoked paprika
  • 1 tsp ground turmeric
  • 2 tsp ground cumin
  • 2 tsp garam masala
  • Pinch red chilli flakes optional
  • 400 g tinned chopped tomatoes (14oz)
  • 400 ml coconut milk (14oz)
  • 1½ litres veg stock (6 cups)
  • Salt and pepper

Instructions
 

  • Add the lentils to a large bowl and cover with cold water. You can do this separately or together if you have a big enough bowl.
  • Finely chop the onion, carrots, garlic and ginger. If it’s easier, grate the carrot rather than chop.
  • Heat up the olive oil in a large pan. Add the chopped vegetables and sauté for 7-8 mins.
  • Add all the spices and a tsp of sea salt and stir through for a minute. Drain the lentils, add to the pan and stir through to coat in the spices. Add the chopped tomatoes, stock and coconut milk. Stir well and bring to the boil.
  • Turn down the heat and let it simmer for about 30 minutes, stirring occasionally until the lentils are cooked.
  • Once cooked, season with salt and pepper. Serve with some fresh coriander, a swirl of natural or plant-based yoghurt and some fresh bread.

Notes

  • This can be stored in the fridge for 3-4 days and freezes well too.
  • If you want to reduce the fat content, you can use half-fat coconut milk.
  • The lentils don’t need to be pre-soaked (like beans). I just soak briefly to remove any dust/dirt. You can also just rinse, if easier.
 
*This post contains affiliate links. I may receive a small commission when you purchase through these links (at no extra cost to you). I only endorse products that I personally use or have tested.

Nutrition

Calories: 450kcalCarbohydrates: 49.2gProtein: 22gFat: 16.3gSaturated Fat: 11.1gFiber: 15.6g
Keyword black dahl, black lentils, lentil soup
Tried this recipe?Let us know how it was!

0 Comments

Submit a Comment

Your email address will not be published. Required fields are marked *

Recipe Rating




This site uses Akismet to reduce spam. Learn how your comment data is processed.

Nutritionist Helen Ridgeway facing camera wearing green apron and white shirt

Hi, I’m Helen,

I’m a Nutritional Therapist based in Harpenden, Hertfordshire with a passion for helping women feel their best through simple, sustainable changes. I believe good nutrition goes beyond food; it’s about supporting your energy, hormones and overall well-being in a way that fits real life.

More about Helen

ebook recipe mockup

Recent Recipes

Fig & Pecan Granola

Fig & Pecan Granola

I make a lot of granola at home, mainly because it's so easy to make your own and you can control exactly what goes into it. This fig and pecan granola is one of my favourites, with lots of gorgeous pecans, dried fig and plenty of autumnal spice with cinnamon and...

Nut Clusters

Nut Clusters

If you love nuts and chocolate, these easy nut clusters are for you. They’re crunchy, packed with pecans, almonds and pumpkin seeds, and finished with a layer of dark chocolate. They’re made with just a handful of simple ingredients, with no flour or butter and only a...

20 Autumn Winter Salad Recipes

20 Autumn Winter Salad Recipes

I’m a big believer that salads aren’t just for summer. In fact, some of my favourite salads are the ones I make in autumn and winter where there’s a whole different selection of seasonal ingredients to work with. Think roasted squash and beetroot, sweet potatoes and...

Harissa Chickpeas

Harissa Chickpeas

If you’re looking for an easy chickpea recipe that makes a really good lunch or simple dinner, these harissa chickpeas are one to add to your list.  Chickpeas are simmered with tomato, red pepper, garlic and harissa until they’re rich and full of flavour, then...

Mini Matcha Bars

Mini Matcha Bars

If you’re a matcha fan, these mini matcha bars are such a good snack to have in the fridge or freezer.  They’re made with just a handful of ingredients and take minutes to prepare, with a subtle sweetness from Medjool dates.  The addition of pistachios,...

Vermicelli Noodle Salad

Vermicelli Noodle Salad

If you’re a fan of peanut sauce, you’re going to love this one. This vermicelli noodle salad is packed with crunchy vegetables, peanuts and fresh herbs, but the star of the show is really the creamy peanut and lime dressing.  And what's even better is that this a...

Mocha Overnight Oats

Mocha Overnight Oats

Overnight oats can be a great breakfast, but if they’re mostly made from just oats and milk, they can leave you feeling hungry again quite quickly. I’ve made these mocha overnight oats differently. By adding ingredients like chia and flax, it adds extra protein, fibre...

Mediterranean Bean Salad

Mediterranean Bean Salad

This easy bean salad takes just a few minutes to throw together, is packed with vegetables and herbs, and the dressing is a winner! I love salads like this for lunch, particularly when I want something that I can make ahead and keep in the fridge. The combination of...

ebook recipe mockup

WANT MORE INSPIRATION?

Sign up for free monthly recipes and get a copy of my free recipe ebook with my 5 most popular recipes

You have Successfully Subscribed!