French Onion Soup

This slimming friendly French Onion soup takes no time at all in the Instant Pot! Great for calorie counting and diet plans like Weight Watchers.

French Onion Soup | Slimming & Weight Watchers Friendly

For the full list of ingredients and comprehensive instructions, please see the recipe card at the end of this post. Before you scroll, there’s important stuff in the blurb 👍

Nothing beats the mouth-watering flavour of cooked onions, and this French Onion Soup has bags of sweetness to boot. The flavours are really intense and the garlic adds an extra depth to the taste.

Soups are a great way to pack in a load of vegetables for a tasty lunch.

This French Onion Soup is also a one pot wonder, and is super easy to make.

French Onion Soup | Slimming & Weight Watchers Friendly

You can also make this in a slow cooker, but you’d need to brown the onions in a frying pan first.

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French Onion Soup | Slimming & Weight Watchers Friendly
One of our Instagram followers @swlinzn made this dish and loved it!
French Onion Soup | Slimming & Weight Watchers Friendly
Another of our Instagram followers @genesis_11_11 made this dish and loved it too!

If you make this French Onion Soup recipe, snap a pic and hashtag it #pinchofnom — We love to see your creations on Instagram, Facebook, & Twitter!

French Onion Soup | Slimming & Weight Watchers Friendly

What do I need to make this French Onion Soup?

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This soup is really simple to make, with no blending or blitzing required.

You will need an Instant Pot

The Instant Pot is like a slow cooker/pressure cooker hybrid and is probably one of our favourite kitchen gadgets.

You can cook stews and soups in it in a quarter of the time it would take in a slow cooker! This French Onion Soup takes 5 minutes in the Instant Pot, but would take about 2 hours in a slow cooker!

We have loads of Instant Pot recipes such as this delicious Caribbean Jerk Stew!

There are a few things you can use to garnish this soup. We like to toast a slice of wholemeal bread, topped with some Reduced Fat Emmental.

Syn Free French Onion Soup | Slimming World
Whatever you choose don’t forget to check and account for the calories and points!

How do I make this French Onion Soup?

  • Slice the onions and garlic finely. Set the Instant Pot to Sauté, spray the inner with low calorie cooking spray and brown the onions and garlic.

French Onion Soup | Slimming & Weight Watchers Friendly

  • Do not stir too frequently, you want the bottom to brown to give the soup extra colour.

French Onion Soup | Slimming & Weight Watchers Friendly

  • Add the balsamic vinegar and Worcestershire Sauce and stir. Pour in all of the water and add the beef stock cubes and vegetable stock pot. Press the “off” button.

French Onion Soup | Slimming & Weight Watchers Friendly

  • Put the lid on, ensure the pressure valve is closed, and press the “Manual” button. The Instant Pot may take a little while to come up to pressure as there is quite a lot of liquid in there!
  • Once the Instant Pot has beeped to let you know it has finished, quick release the pressure (careful not to get in the way of the releasing steam!). Serve the soup with a garnish of your choice!

French Onion Soup | Slimming & Weight Watchers Friendly

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French Onion Soup | Slimming & Weight Watchers Friendly

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French Onion Soup | Slimming & Weight Watchers Friendly

Votes: 7
Rating: 4.14
You:
Rate this recipe!

Servings

Prep Time

Cooking Time

people 5 minutes 20 minutes

Calories

WW

Carbs

78kcal 2

Smart Points (Flex/Freestyle)

Coming Soon

Per people Per people Per people
Suitable For Freezing icon Gluten Free icon Dairy Free icon
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INGREDIENTS
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INSTRUCTIONS
  1. Slice the onions and garlic finely. Set the Instant Pot to Sauté, spray the inner with low calorie cooking spray and brown the onions and garlic. Do not stir too frequently, you want the bottom to brown to give the soup extra colour. This will take around 10 minutes.
  2. Add the balsamic vinegar and Worcestershire Sauce and stir. Pour in all of the water and add the beef stock cubes and vegetable stock pot. Press the "off" button.
  3. Put the lid on, ensure the pressure valve is closed, and press the "Manual" button. Change the time to 5 minutes. The Instant Pot may take a little while to come up to pressure as there is quite a lot of liquid in there!
  4. Once the Instant Pot has beeped to let you know it has finished, quick release the pressure (careful not to get in the way of the releasing steam!). Serve the soup with a garnish of your choice!

If you make this recipe, snap a pic and hashtag it #pinchofnom — We love to see your creations on InstagramFacebook, & Twitter!

RECIPE NOTES

We use a fan assisted oven for all of our recipes. Need help converting the temperature for your oven? 

Click here for our oven temperature conversion guide.

This recipe can be frozen, but please remember to do the following;

- Freeze it as soon as it is cold enough.
- Use a container or bag that is suitable for freezing.
- Defrost thoroughly before reheating (you can use the defrost setting on your microwave.)
- Make sure it is piping hot all the way through before serving.

If making this recipe Gluten Free please make sure to check the ingredients that you’re using

Especially things such as; 

- Stock cubes
- Soy sauce - substitute with Tamari.
- Worcestershire sauce - substitute with Henderson’s Relish.
- Etc.

IMPORTANT INFORMATION

Although pinchofnom.com attempts to provide accurate nutritional information, these figures should be considered estimates. Varying factors such as product types or brands purchased, natural fluctuations in fresh produce, and the way ingredients are processed change the effective nutritional information in any given recipe. Under no circumstances will pinchofnom.com be responsible for any loss or damage resulting for your reliance on nutritional information.

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  • That you credit us by not only screenshot but linking to our original recipe post
  • You don't reproduce the recipe in full
11 Comments
  1. Could you do this in a soup maker or would not be the same without frying the onion and garlic? Can you recommend a cheaper version of the instant pot? I looked at them on Amazon but very expensive! There are alternatives but which one?!! Haha! Thanks in advance. 😀

  2. Hi
    I love French onion soup, but don’t have a sauté pot. Do you think it could be done in a soup maker?
    Thanks ☺️

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