Mum's leek & potato soup with mustard toasts

Mum's leek & potato soup with mustard toasts

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(38 ratings)

Prep: 15 mins Cook: 25 mins


Serves 8
Mary Cadogan says 'This soup is still a favourite of mine and always goes down a treat'

Nutrition and extra info

  • Freezable

Nutrition: per serving

  • kcal314
  • fat17g
  • saturates6g
  • carbs31g
  • sugars0g
  • fibre4g
  • protein11g
  • salt2g


  • 50g butter



    Butter is a dairy product made from separating whole milk or cream into fat and…

  • 8 rashers streaky bacon, chopped
  • 5 large leeks, sliced



    Like garlic and onion, leeks are a member of the allium family, but have their own distinct…

  • 2 large potatoes, cubed



    The world's favourite root vegetable, the potato comes in innumerable varieties. A member of…

  • 1.2l vegetable stock
  • 2 bay leaves
  • 300ml milk



    One of the most widely used ingredients, milk is often referred to as a 'complete' food…

  • handful chopped parsley



    One of the most ubiquitous herbs in British cookery, parsley is also popular in European and…

For the toasts

  • 1 long thin baguette
  • 4 tbsp olive oil
    olive oil

    Olive oil

    ol-iv oyl

    Probably the most widely-used oil in cooking, olive oil is pressed from fresh olives. It's…

  • 1 tbsp wholegrain mustard


  1. Melt the butter in a large pan, add the bacon and fry it until it is just starting to colour. Add the leeks and potatoes, then stir well until they are glistening.

  2. Add the stock and bay leaves, season and bring to the boil. Partly cover and simmer for 15 mins, until everything is cooked. Fish out the bay leaves, then purée the soup in batches in a food processor or blender. Return to the pan and stir in the milk. Reheat gently and season to taste. Add more stock or water if the soup seems too thick (this will depend on the size of your potatoes). Sprinkle with parsley to serve.

  3. Make the toasts: heat oven to 200C/fan 180C/gas 6. Cut the baguette into thin diagonal slices. Mix the oil and mustard together, then brush over both sides of the bread. Spread them on a large baking sheet and bake for 10 mins. Serve with the soup for dipping. They can be baked earlier in the day and served cold or warmed through in the oven.

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Comments, questions and tips

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2nd Jan, 2019
Not unpleasant, but completely unremarkable; I think I'm erring on the generous side with three stars. I made it exactly as per the recipe (as far as I know; what on earth is a 'large' leek or potato?). I tend not to add loads of salt to things - I'm suspicious of recipes that rely entirely on seasoning for flavour - but without some this was truly bland. In the unlikely event I make this again, I will certainly include garlic and/or some chilli.
risky76's picture
3rd Apr, 2016
Just made this recipe, it's very nice. I didn't add bacon as I don't eat red meat, But I did put couple of garlic cloves in and it needs plenty or seasoning. My husband liked it (but said he would have liked to try with bacon), as a compromise I fried up some chunky lardons and topped his soup with those which made him happy!
2nd Nov, 2015
Mixed feelings about this recipe. Some depth of flavour was missing. However, I don't live in the UK and have no idea about the weight of 8 rashers of bacon. In my case 8 rashers were about 90 grams. Maybe that was not enough. It would really help if weight is mentioned in the recipes as well.
21st Jan, 2014
Quick easy recipe with a great taste.
11th Feb, 2013
Made this about 4 times now. It's delicious. My tip is to also dry fry (or use a little oil) some small chopped up pieces of streaky bacon you have left from the packet until really crispy and then pop a few bits on the top of the soup when in serving bowls. It's a very tasty garnish!
31st Jan, 2013
We are all at home with the flu, made a batch of this soup. It has perked us up no end.
15th Nov, 2012
Lovely soup it is so comforting. I don't have the bacon or add the milk and it's still v yummy.
15th Jul, 2012
This is a great simple recipe that always goes down well in our house hold. Even my parents & in laws have a copy of the recipe & I have to make up a large batch as everyone goes back for seconds every time lol;)
15th Jul, 2012
This soup is now a family favourite my husband loves it, thank you for the recipe. ********************************************************
Frantic Flapjack
29th Apr, 2012
Pretty average soup. There are much better recipes out there, including this site.


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9th Nov, 2015
Use smoked bacon it really lifts the flavour of this already awesome recipe!
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