Sweet potato & lentil soup

Sweet potato & lentil soup

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(139 ratings)


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Cooking time

Prep: 10 mins Cook: 25 mins

Skill level



Serves 6

Satisfying and simple to make, homemade soup is a great supper or take-to-work lunch

Nutrition and extra info

Additional info

  • Freezable
  • Vegetarian
Nutrition info




  • 2 tsp medium curry powder
  • 3 tbsp olive oil
  • 2 onions, grated
  • 1 eating apple, peeled, cored and grated
  • 3 garlic cloves, crushed
  • 20g pack coriander, stalks chopped
  • thumb-size piece fresh root ginger, grated
  • 800g sweet potatoes
  • 1.2l vegetable stock
  • 100g red lentils
  • 300ml milk
  • juice 1 lime

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  1. Put the curry powder into a large saucepan, then toast over a medium heat for 2 mins. Add the olive oil, stirring as the spice sizzles in the pan. Tip in the onions, apple, garlic, coriander stalks and ginger, season, then gently cook for 5 mins, stirring every so often.
  2. Meanwhile, peel, then grate the sweet potatoes. Tip into the pan with the stock, lentils, milk and seasoning, then simmer, covered, for 20 mins. Blend until smooth using a stick blender. Stir in the lime juice, check the seasoning and serve, topped with roughly-chopped coriander leaves.

Recipe from Good Food magazine, November 2009

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zuzle77's picture
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Lovely soup!

Squidge180's picture
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Followed the recipe and it was delicious, one of the best soups I have made. Took to work for lunch every day last week. Will certainly be making again.

leigh-anne1977's picture

Just made this. I used corriander leaves (I threw the storks out so I could freeze earlier in the month). Taste is very like carrot and corriander which is an easier soup to make although the lentils give it added protein and the sweet potato gives a better texture than that of car. & corr. I will defo make this again.

abi_ponnampalam's picture

Lovely soup, disappeared in minutes although thought I had made enough to take to work tomorrow! Didnt have any coriander, was still lovely. Will be making this again.

Chef de Circos's picture
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One of the only recipes where I've found lime to be a welcome addition, it really shines through in this soup.

I kinda messed up the consistency of the soup and it turned into a curry, but that didn't affect my enjoyment of it.

canterburybelle's picture
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I followed the recipe to the letter, apart from the amount of oil, and found the soup way too sweet. I usually like sweetness in savoury foods, so that's saying something! The base ingredients gave a lot of flavour, so I might try replacing the sweet potatoes with carrot.

ShazzaTheOne's picture
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Lovely soup, and a clever recipe. A small serve was very filling. I used a sweet Fijian curry powder, a desertspoon of powdered coconut cream instead of milk, and added a few pinches of dried red chillis and a little cayene pepper. It didn't need lime juice.

Grating everything was no trouble with a good quality mandolin slicer/grater. Grating was a better technique than boiling everything to a sludge. Sticking to the recipe instructions, I didn't overcook the grated ingredients so the soup retained some appealing texture after whizzing the stick blender through it. Nice result!

iammart's picture

Delicious and warming. I just diced all the veg and it made a smooth soup blended, and I used a Bramley instead of a sweet apple, half a lime's juice, and some fresh thyme instead of coriander. We got 8 lunch sized portions to serve with bread.

Jane George 1's picture

Very easy to make and it went down extremely well with the St Brendan's Science Soup Dragon Club!

SimoneJalabert's picture

Delicious. No need to grate vegetables.

CorinneV's picture

Great tummy warmer on a cold day. Halved the recipe. Skipped the milk, added only 400 ml of broth and added about 1dl of cream just after pureeing. Put 1 carrot and a handfull of kale in, too. Lovely thick soup.

debandlola's picture
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This is really tasty soup and makes a good amount. The grating did seem a pain, but was perhaps worth it. After reading other comments I only added the juice of half a lime. This really contributed to the overall flavour, but I think it was enough.

shechapter127's picture
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My three star rating is down to my own personal taste - I don't like sweet potato. But the smell of the garlic, apple and onion cooking was mouth watering. I'll be experimenting with this mixture.

emmamoss's picture

This is full of flavour, had it for dinner tonight as suggested by the BBC good food diet advice. Good with some sour dough bread. The only comment is that it is a little watery.

kirstienic's picture

Delicious. Lovely texture and generous portions. I followed the recipe exactly except I didn't bother grating anything, just chopped it fairly small (it gets blended anyway so all you need to do is ensure the potato is cooked until soft).

juliec101's picture

Worst recipe ever! Unless you enjoy standing grating vegetables for hours. Be careful of 'toasting' the spices. Likely to give you black soup!

petergrundy's picture

Why did you do this recipe in the first place, when it clearly instructs you to grate the vegetables. Open a tin next time!

NickyCWilliamson's picture

Very good. Will definitely be making this again, but without the grating.

sweetrebel's picture

First time made soup from sweet potato, fantastic texture and easy quick to make it.Sweet dishes not my favorite, but wanted to experiment this recipe due to different comments and high rated.
No need to grate everything if you will blend it all anyway, potato can be used 500 g., 800 g too much. Lemon/lime juice add just before serving the soup with chopped coriander on top, add chili flakes if like little spicy but not hot. Chili and lemon juice breaks sweetness and adds more flavor. Loved it. Bon Appetite

mrmaster's picture

Terrible, just terrible............ OK, I didn't have lime, I used chicken stock, I didn't have corriander storks, other than that I followed the recipe to the letter which produced a very dull and slightly sweet soup. I made a double quantity too because of the high ratings............. I want my money back! :)