Liver and Onion Gravy

This slimming friendly Liver with Onion Gravy is a quick midweek dinner, great if you are calorie counting or following a plan like Weight Watchers!

This Liver with Onion Gravy recipe is so quick and easy. You can have it prepared and cooked in under 30 minutes! If you’re not keen on Liver, you should try our Meatballs & Gravy.

Liver and Onion Gravy | 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 👍

Liver with Onion Gravy is a traditional British dish, that has been around since the 19th century, and has even been served as breakfast. I’m not sure I’d have it first thing in a morning, but for diner it is delicious!  Liver is really healthy because it contains vitamins A, B and C, as well as other vitamins and minerals.

Liver and Onion Gravy | Slimming & Weight Watchers Friendly

Not everyone in our house is a fan of liver, so I usually brown some sausages under the grill and add them to the gravy. Personally I love liver, but Kay detests it!

To make sure the Liver is cooked enough, check to see whether there is pink liquid coming out of it and if it is soft all the way through when pierced with a sharp knife. The texture should be similar to firm pate. Overcook the liver and it’ll be as dry as old boots, so be careful.

Undercooked or overcooked liver is as bad as any other meat cooked incorrectly but making it the right way results in a nutritious and mouthwatering meal coming in at under 300kcal’s per serving.

Liver and Onion Gravy | Slimming & Weight Watchers Friendly

In my opinion the gravy doesn’t need thickening, but if you want it thicker you can add a couple of teaspoons of Corn Flour or a tiny bit of Xanthan Gum. If you do chose to have it thicker, don’t forget to adjust the calories and Points!

Liver is ridiculously cheap, which means you can make this Liver with Onion Gravy for less than £1 per serving. Fantastic if you’re on a budget.

Liver and Onion Gravy | Slimming & Weight Watchers Friendly

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Liver with Onion Gravy

Votes: 7
Rating: 4.86
Rate this recipe!


Prep Time

Cooking Time

portion 5 minutes 15 minutes




247kcal 5

Smart Points (Flex/Freestyle)

Coming Soon

Per portion Per portion Per portion
Suitable For Freezing icon Dairy Free icon
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  1. Spray a decent size frying pan with some low calorie cooking spray and place on a high heat
  2. Peel the onions. Chop one of them roughly and cut the other one into slices. Peel and chop the carrot
  3. Season the liver with a little sea salt and freshly ground black pepper. Carefully put the liver in the hot pan and cook for 2 - 3 minutes. Turn each piece and cook for another 2 or 3 minutes
  4. Remove the liver from the pan and set aside. Spray the pan with some more low calorie cooking spray. Cook the onion slices until they start to soften and colour. Remove them from the pan and set aside with the liver
  5. Add the carrots, chopped onion and stock to the pan. Bring to the boil and simmer for 10 minutes. When the onions and carrot are cooked blitz them with a stick blender until smooth. The gravy may be a little orange due to the carrot, so add a couple of drops of gravy browning if you want
  6. Put the liver and cooked onions back into the gravy and cook for another few minutes. Check the liver is cooked to your liking and serve

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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.


Although 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 be responsible for any loss or damage resulting for your reliance on nutritional information.

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Slimming World Recipes
A blog started by 2 chefs on their Slimming journey, evolving into an epic adventure shared by many!