How Many Syns In M&S Shortbread? Find Out Here!

Updated on 
26 June, 2022

Can I Eat M&S Shortbread On Slimming World? Is It High In Syns?

If you got a craving for some shortbread, the good news is you can happily enjoy these biscuits in moderation in the slimming world, as long as your track their syns.

Can I Eat M&S Shortbread On Slimming World?

M&S shortbread has 4.5 syns a finger on the slimming world and 2 syns per finger for their mini version, making this biscuit high in syns, we would suggest only having this shortbread as the occasional treat on the slimming world when your syns allow.

Down below, we've discussed in more detail why M&S shortbreads are high in syns, syn values of their whole shortbread range, some low syn alternatives and a recipe for making your own SW millionaires shortbread at home!

Why Is M&S Shortbread High In Syns?

M&S shortbread has 4.5 syns a finger or two syns for their mini version, allowing you to have up to 3 regular fingers before using all your daily syn allowance and 7 mini fingers.

These shortbread fingers get their high syn values from the high sugar and fat content in the biscuits, this is because they are typically made with full-fat butter and caster sugar. Still, you can enjoy a few shortbread fingers on the SW plan here and there, but just make sure they fit into your syns.

Syn Values Of M&S Shortbread

M&S have a few different shortbreads from their bakery, so to help you stay on track, we've listed all of their syn values down below.

  • M&S All Butter Scottish Shortbread Fingers 210g - 4.5 syns.
  • M&S Mini All Butter Scottish Shortbread Fingers 125g - 2 syns.
  • M&S 4 Salted Caramel Millionaire's Shortbread 220g - 13 syns.
  • M&S Millionaire Shortbread Bar 50g - 12 syns.
  • M&S All Butter Shortbread Rounds 180g - 5 syns.
  • M&S Scottish All Butter Shortbread Assortment 450g - 4.5 syns.
  • M&S All Butter Scottish Dark Chocolate Chunk Shortbread Rounds 175g - 5 syns.
  • M&S All Butter Toffee Shortbread Thins 360g - 2.5 syns.

Low Syn Alternatives To M&S Shortbread

If you find M&S shortbreads to be too high in syns and you are looking for a low syn alternative, we've got you covered with some other low syn shortbread options down below.

  • Paterson's Delicious Shortbread Fingers 380g - 5 syns.
  • Costa Coffee Millionaire's Shortbread - 20 syns.
  • Sainsbury's Highland Shortbread All Butter Fingers 200g - 5 syns.
  • Gullon Sugar Free Shortbread Biscuits 2 x 165g (330g) - 2 syns.
  • Tesco Finest 4 Triple Chocolate Shortbread - 16.5 syns.
  • Tesco Scottish Shortbread Assortment Tin 500g - 5 syns.
  • Aldi Belmont All Butter Shortbread Fingers Biscuits 210g - 5 syns.
  • Greggs 4 Caramel Shortbread - 15 syns.
  • Sainsbury's Taste the Difference 4 Chunky Belgian Chocolate Shortbread - 17 syns.
  • Tesco All Butter Shortbread Petticoat Tails 450g - 3 syns.
  • Co-op Shortbread Fingers 380g - 4 syns.
  • Lidl Tower Gate All Butter Shortbread Fingers 210g - 5 syns.
  • Morrisons Cake Shop On Market Street 18 Salted Caramel Shortbread Squares - 3.5 syns.
Low Syn Alternatives To M&S Shortbread

Our Best SW Millionaire Shortbread

If you are craving some shortbread but don't want to spend all the syns, you can always make your SW millionaires shortbread at home, our recipe below only has 4.5 syns a serving for a whole square and is much lower in sugar than regular shortbread!



  • 140g of flour.
  • 75g of unsalted butter.
  • Drop of vanilla extract.
  • Five spoons of granulated sweetener.


  • 60ml of evaporated milk.
  • 40g of milk chocolate.
  • 60ml of water.
  • Four tablespoons of brown sugar and demerara sugar.


  1. Begin by heating your oven to gas mark 6 then cream your butter, sugar and vanilla extract together, mix the flour in another bowl with a pinch of salt, add the sweetener then cream this into the butter mixture.
  2. Now line an 8-inch square tin, add in the mix flattening it down with the back of a spoon and bake for around 10-12 minutes, remove and let the base cool down.
  3. Mix the demerara and brown sugar with the water and simmer it till dissolved and syrup-like, this will be for around 6 minutes in total.
  4. Pour on top of the biscuit base then allow it to cool, melt your chocolate in the microwave and drizzle on top through the corner of a zip lock bag.

Last Words

To conclude, M&S shortbread is high in syns, having around 4.5 syns a finger for their regular version and 2 syns a finger for their mini shortbread. We would therefore suggest having their shortbread in moderation due to the high fat and sugar inside of the ingredients.

Our Best SW Millionaire Shortbread

To save syns we recommend opting for mini size shortbreads or checking out our low syn alternatives above and SW recipe for a sweet treat.

Jennifer is a certified nutritionist and weight loss coach with a Master's in Nutrition from Cambridge. With over 10 years experience, she shares healthy recipes and science-backed slimming tips on SheCooksSheEats to help people reach their wellness goals. Jennifer stays up-to-date by regularly attending conferences and continuing her nutrition education. She aims to provide research-backed advice to inspire balanced, happy living.
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