Slimming World Low Syn Marshmallow Bars, cheerios, marshmallows

Slimming World Marshmallow Bars

We all like to have a treat as a snack, something before lunch, after lunch or when we need that kick in the afternoon. Snacking on shop-bought snacks can work out expensive and half the time it is full of calories and bad stuff, then you feel guilty for falling off plan.

Now there is a solution with making your own low syn marshmallow bars. These are like the ever so popular rice crispy square, however, there are two major differences, the first is that these are made with the Aldi version of Cheerio’s called Harvest Morn Hoops. I know that this is a low syn cereal bar, the ideal snack for the whole family.

Slimming World Low Syn Marshmallow Treat Bars Syn Count?

The slimming world marshmallow bars are 4 syns per slice, these are a low syn treat, meaning that you can have one of these and not feel guilty. Meaning you have plenty of syns leftover for lunch, dinner etc for the rest of the day. If you fancy some more naughty slimming world low syn snacks, I’d suggest taking a look at this yummy Slimming World Chocolate Chip Banana Bread and really enjoying yourself, it’s one of my favourite slimming world chocolate recipes!

Why Make Your Own Snacks?

There are a number of reasons for making your own snacks, the first would is the cost, the second would be you actually know what is in the treats, rather than the rubbish from the shops and finally, these are so easy to make, perfect to make with young children because they are easy to make.

These low syn cereal bars are a great low syn snack on the go, so much so, I’ve replaced shop-bought snacks in my packed lunch for work since I made them, I now have to make these on a weekly basis, especially as they never last long in my house. These have to be one of the best slimming world snacks that I have made.

Slimming World Low Syn Marshmallow Bars Recipe!

This recipe is perfect for any day of the week, they don’t take up too many syns which means you have enough slimming world syns to enjoy some nice snacks. If you want a list of some yummy slimming world snacks, then take a look at this Low Syn Slimming World Snacks post for some inspiration! What makes these even better is that they are a tasty and healthy low calorie snack.

Recipe Cost Breakdown

*Prices correct as of July 2019

Harvest Morn Hoops 80g 304 kcal £0.10 16
Sugar-Free Marshmallows 80g 257 kcal £2.49 13
TOTAL 160g 561 kcal £2.59 16
PER BAR 20g 71 kcal £0.33 4

I have made the recipe with both the Harvest Morn Hoops and Cheerio’s, the calories and syn points are exactly the same, the only difference with the Cheerio’s version is the price. If you do use Cheerio’s, then it will cost £5.04 for the 8 bars, which works out at £0.63 per bar.

Easy Cheap Recipe

If you’re being thrifty, then these low cost snacks are the ticket for you. Living on a budget doesn’t mean that you have to eat boring, bland foods. What it does mean is that you need to think a little bit more about how to get the most out of what you’ve got. This is one of my favourite budget recipes for snacks, the only downside to this recipe is that you may need to make this more than once, especially if they go down as well as they do in my house.

Low Calorie Snacks

If you’re on a diet and looking for some low calorie snacks and treats, then look no further than this low calorie snack bar, it is great if you’re looking for low calorie foods. As you can see from the table above, this is a less than 100 calorie snack, meaning it is perfect as a treat or in a lunch box.

Recipe for Marshmallow Treat Bars

Slimming World Low Syn Marshmallow Treat Bars

Slimming World Low Syn Marshmallow Bars

Calories: 71 kcal per bar / Slimming World: 4 syns a bar These are the perfect snake for a lunch box and better than the shop-bought snacks, why not give them a try.
Prep Time 3 minutes
Cook Time 1 minute
Total Time 34 minutes
Course Dessert
Cuisine Dessert, Slimming World
Servings 8 Slices


  • 80 g Harvest Morn Hoops
  • 80 g Sugar Free marshmallows


  • Weight out the marshmallows. Put into a microwavable glass bowl.
  • Heat the marshmallows in a microwave for 10 – 15 seconds.
  • Once melted, give it a stir. Use a silicone spatula, as it makes the molten marshmallow easier to work with and the next stage. If the marshmallows are not 100% melted, put them back in the microwave for a few seconds at a time.
  • Add the Hoops to the molten marshmallows and mix until all combined. You will need to do this quickly, as the marshmallow will stiffen as it cools. If you need to, return the mix to the microwave for 5 seconds at a time, to loosen the mixture up.
  • Make sure the picture is in a glass bowl, flatten out. Then cover with clingfilm and place in the fridge until to set.
  • Once set, remove from the fridge, cut into 8 slices and enjoy.
Keyword Desserts, Slimming World, Snack, Treats

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