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Leek And Potato Soup – Slow Cooker Recipe

May 21, 2020 Penny 7 Comments

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Leek And Potato Soup
Leek And Potato

Slow Cooker Leek And Potato Soup

One of the joys of using a slow cooker is maximum taste for minimum effort! This leek and potato soup has a preparation time of just a few minutes chopping and then all the ingredients go in the pot for a long, slow cook.

The long cook means all the full flavour is extracted from the vegetables, which is why seasoning is best adjusted at the end of the cooking time.

Leek and potato go together so well and this slow cooker recipe is easy to prepare and lets the full flavour come through

I made this leek and potato soup in the slow cooker as someone requested a soup recipe for the slow cooker. Since I usually make soup for lunchtime, this will generally mean making the soup the day before and reheating – which is usually a good thing since the flavours are improved by being left for a day.

Preparing the Leek And Potato Soup

Leeks and potatoes just seem to go together, their flavours naturally complementing each other. Both are in season and where possible, do buy from a local supplier. Both are usually cheaper – and tastier – bought from a local greengrocer than in the supermarket.

As with most soups, I began with an onion. Some recipes recommend softening the onion in some oil before transferring to the pot. As I wanted to keep this recipe as simple as possible, I just put all the ingredients into the pot with some stock and a knob of butter. The result is very good once the seasoning was adjusted at the end of the cooking time.

Slow Cooker Method

All the vegetables should be cut up quite small as they do take time to cook in the slow cooker, especially on low. This soup was cooked for about 9 hours on ‘low’. It could be cooked on a ‘high’ setting for the first 2 hours. It is also important to remember not to be too tempted to lift the lid to stir and smell too often as it lets a lot of heat out of the pot which adds to the overall cooking time as the slow cooker will need to get itself back up to temperature.

Ensure that the lid is tightly on the pot, peeking to look and stir only once about half way through cooking and then leaving it until the end when you expect it to be ready

Of course another lovely side effect of using the slow cooker is the delightful cooking smells that waft through your kitchen all day, creating much anticipation for the dish that you are cooking.

It is best to preheat your slow cooker for about 20 minutes before adding the ingredients so that when you add the ingredients it can get the dish to the right temperature more quickly.

Three Leeks, Two Potatoes

I used three large leeks for this dish, and two large potatoes. This seemed the right proportion and combination, but different recipes will give you different proportions. It will also depend on what you have available. Another vegetable can be added if you do not have quite enough, such as a carrot or cabbage. Soups are ever flexible in both their ingredients and their flavourings

I added some mixed herbs to the stock at the beginning but waited to adjust the salt and pepper seasoning at the end of the cooking time and also added a teaspoonful of paprika – a spice made from red bell pepper.

This soup can be served with swirl of single cream, or a sprinkling of cheese – mozzarella or cheddar – and of course a slice of crusty (home made) bread.

Cooking Notes

You will need a Slow Cooker

Serves 4 generously

Leek And Potato Soup Recipe

Ingredients

  • 1 onion peeled and chopped
  • 3 large leeks
  • 2 potatoes
  • 1 litre vegetable stock
  • knob butter or margarine
  • 1 teaspoon mixed herbs
  • salt and pepper to taste
  • 1 teaspoon paprika
  • 4 tablespoons single cream
  • 4 tablespoons grated cheese

Cooking Directions

  1. Set your slow cooker to Low (if cooking for 9 hours) or High (for 3-4 hours)
  2. Peel and chop the onion
  3. Thinly slice the leeks
  4. Peel and dice the potatoes
  5. Add the mixed herbs to the stock
  6. Place all the ingredients in the pot with the stock – the stock should just cover all the ingredients – add a little more if necessary but don’t fill slow cooker to the brim.
  7. Stir all the ingredients to mix thoroughly
  8. Cook on low for 9 hours
  9. When all vegetables thoroughly soft, process in batches in blender
  10. Adjust seasoning with paprika, salt and pepper
  11. Reheat on hob
  12. Serve in bowls
  13. Swirl with cream or sprinkle with cheese if desired

Soup Recipes Vegetable Soup

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Comments

  1. john says

    November 6, 2020 at 4:17 pm

    is the potato and leek soup suitable for home freezing?

    Reply
    • Penny says

      November 9, 2020 at 9:31 am

      Yes it certainly is – most soups are

      Reply
  2. Anonymous says

    October 30, 2020 at 3:59 pm

    Made this last night Penny. Had it today Absolutely scrumptious. TIP. I chucked a large portion of Stilton in towards the end. Delicious 🌞

    Reply
    • Penny says

      October 31, 2020 at 12:55 pm

      Thank you! Stilton addition sounds like a great tip too!

      Reply
  3. Ann Fraser says

    August 24, 2014 at 7:47 am

    I made this yesterday on low for 12 hours now I cant wait to have some. Think 8.30 am is too early so roll on dinner time. Thank you Penny

    Reply
  4. Daniella Coughlin says

    February 20, 2012 at 10:01 pm

    A family favorite. I don’t normally cook soup in my slow cooker but i’ll give it a go. Any other new recipes for the ‘retro’ slow cooker……

    Reply
    • penny says

      February 20, 2012 at 10:45 pm

      I only have one or two slow cooker recipes on the website at the moment – all the casserole or stew recipes could be done in the slow cooker, though such as the Vegetable and Bean Casserole. I don’t use it as often as I could. It’s great to get everything ready in the morning and know that the meal is done and ready without any work in the evening!
      Let me know if you enjoy your soup!

      Reply

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