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Extra creamy leek and potato soup

Extra creamy leek and potato soup - this soup is super creamy, but pretty healthy too! No cream in sight.

Did you know that there are dozens of delicious recipes on the Flora website? (the broccoli and cauliflower pancakes sound especially gorgeous!) Today they’re kindly letting me share a recipe from their website – leek and potato soup!

Leek and potato soup is an utter classic, and there’s a reason for that. It’s thick and creamy (this version in particular!!), with beautiful flavours from the oniony leeks – and it’s healthy too! I love the addition of carrots in this recipe – they add an extra hit of vitamin C (very much needed in this cold weather!), and give the soup a lovely colour, without making the flavour hugely different from the classic version.

I did make a few small changes to the recipe on the Flora website. Firstly, I made a slightly smaller batch, since there are only two of us and I didn’t want to be eating soup for days on end (delicious though it was). I also added a few cloves of garlic, since I think there isn’t a single recipe in this world that isn’t improved by garlic.

(note: the above is definitely not true. I take no responsibility for people who add garlic to their cake mix)

Extra creamy leek and potato soup - this soup is super creamy, but pretty healthy too! No cream in sight.

The unbelievable creaminess of this soup is due to a technique that I’d not used before, involving a mixture of cornflour and milk. I usually use cream in my creamy soups (which is why I don’t make them very often!!) – I always assumed that milk would be a bit too thin, but with the addition of the cornflour, it works really well to make the soup super creamy (and it’s much healthier than actual cream too!). To be honest, the soup was quite creamy even without the milk+cornflour addition, but this took it over the edge to the omg-so-creamy kind of creamy. It’s definitely a technique I’ll be experimenting with again!

Extra creamy leek and potato soup - this soup is super creamy, but pretty healthy too! No cream in sight.

I don’t tend to use margarine very often in my cooking – I like a rich, creamy flavour, so I usually just stick to butter. However, the flavour of Flora Buttery is just the same as real butter (if I was a bit more shameless, I’d eat it with a spoon… maybe), and I really like how it’s soft and spreadable, even when you keep it in the fridge. The worst thing about real butter, in my opinion, is the way it goes rock solid in the fridge and ruins your bread when you try to spread it. This problem doesn’t exist with Flora Buttery! It’s definitely going to be making regular appearances on my shopping list from now on.

Extra creamy leek and potato soup - this soup is super creamy, but pretty healthy too! No cream in sight.

Extra creamy leek and potato soup

Prep Time5 mins
Cook Time20 mins
Total Time25 mins
Course: Soup
Servings: 3
Author: Becca Heyes


  • 2 tbsp Flora Buttery
  • 2 medium leeks halved lengthwise then sliced
  • 3 cloves garlic minced
  • 2 medium carrots sliced
  • 3 medium potatoes diced
  • 250 ml vegetable stock ~1 cup
  • 1/2 tsp dried thyme
  • Black pepper
  • 2 tbsp cornflour
  • 500 ml milk ~2 cups
  • Fresh parsley optional, for serving


  • Add the Flora Buttery to a large saucepan along with the leeks and garlic, and sauté for a few minutes, until soft and fragrant.
  • Add the chopped carrots and potatoes to the pan, as well as the vegetable stock, thyme and plenty of black pepper. Don’t worry if the vegetables aren’t entirely submerged. Cover the pan, and bring to a gentle simmer. Stirring occasionally, cook for around 10 minutes, or until the vegetables are tender.
  • While the vegetables are simmering, dissolve the cornflour in the cold milk (I found this easiest using a whisk).
  • When the vegetables are soft, carefully transfer the mixture to a blender, and blend until smooth. Return the soup to the pan, and add the milk mixture. Stirring regularly, cook over a gentle heat for a few more minutes until the soup has thickened up to your desired consistency. Check the seasoning (I added a lot more black pepper!), and serve topped with fresh parsley if desired.

Extra creamy leek and potato soup - this soup is super creamy, but pretty healthy too! No cream in sight.Here’s another creamy yet healthy soup recipe for you: creamy tomato soup with basil pine nut crumb (in just 15 minutes!)

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Recipe Rating


Wednesday 18th of February 2015

Thanks for the recipe - I bet the carrots do add a nice touch - you could probably even try it with a parsnip or two.


Tuesday 20th of January 2015

I made this tonight for dinner and it was delicious. The rosy colour from the carrots makes it much prettier than most potato leek soups. I didn't use the cornstarch, though, as it was already quite thick. I will definitely make this again - easy and scrumptious. Thank you.

Becca @ Amuse Your Bouche

Tuesday 20th of January 2015

Thanks Vivian, so glad you liked it! :) you're right, it's really creamy even without the cornstarch isn't it :)

Fiver Feeds

Monday 12th of January 2015

Potato soup is one of my favorite soups (along side mushroom), extra creamy only makes it even better!

Kate @ Veggie Desserts

Sunday 11th of January 2015

Lovely and creamy. I love how smooth the Froothie blender gets soups!

Dannii @ Hungry Healthy Happy

Friday 9th of January 2015

Leek and potato is my favourite soup. So comforting and easy to make too.

Haha, I agree about garlic, I put it in everything. Not cake though ;)