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Irish Oat Flapjacks #BreadBakers

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Chewy and buttery rich, these Irish Oat Flapjacks are easy to make breakfast bars or a post-workout snack. They are buttery rich delicious finger or travel food for your kids. 

Irish Oat Flapjacks arranged on a black cheese board

What is a Flapjack?

A flapjack is a baked bar also known as a muesli bar, cereal bar, oat bar, or a slice. Generally made using oats, butter, brown sugar, and golden syrup. 

It is commonly referred to as Flapjack in Ireland and the UK. Muesli bars or Cereal bars in other countries. In the United States and Canada flapjack is a widely but lesser-used term for pancake.

I love cereal bars mainly because they are a great travel food or a mid-evening snack. I use to buy them earlier as they were easily available. We get different options, like honey and oat, chocolate and oat, golden syrup and oat, etc. 

When I first tasted a homemade flapjack, I did not like it. It had too much butter and it was made using porridge oats. I am not saying it was not delicious, it was, but I do not like the buttery taste that lingers in the mouth. But recently I tasted this when a friend baked it. My son loved it and so do I. She mentioned its old family recipe, and she roughly detailed the process.

So I decided to make this but using rolled oats. My recipe of Irish Oat Flapjacks involves using rolled oats. I am not using oatmeal or not using oats in powdered form. Just simple rolled oats. They are a lot crunchier when baked and retain their texture.

How to make Irish Oat Flapjacks / Recipe process of Irish Oat Flapjacks

The recipe is quite simple and easy. The first step is to melt the butter, golden syrup, and sugar together. Once done add the oats and combine. Line this up on a baking tray and bake for 25-30 minutes until golden brown. 

Irish Oat Flapjacks arranged on a black cheese board

Variations to Irish Oat Flapjacks

One can add nuts and seeds of choice. Hazelnuts, almonds, sultanas, raisins, cranberries all go well. Sunflower seeds, pumpkin seeds, chia seeds, flax seeds can be added as well. If you like some cocoa powder, whole chocolate chips can be added too. 

What is Golden Syrup

Golden syrup is a thick amber-colored form of sugar made by the process of refining sugar cane or sugar beet juice into sugar. (Source wiki)

Replacement of Golden Syrup

I understand that golden syrup might not be available to all. If you want to replace it one can do with honey or maple syrup. Molasses or treacle can be replaced too, however, it would have a strong flavor. 

Few more recipes with Oats

Irish Oat Flapjacks Recipe

Irish Oat Flapjacks arranged on a black cheese board

Irish Oat Flapjacks

Chewy and buttery rich, these Irish Oat Flapjacks are easy to make breakfast bars or a post-workout snack, or a great finger or travel food.
5 from 1 vote
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Course: Snacks
Cuisine: Irish
Keyword: Baked, Eggless Bakes, Gluten Free
Prep Time: 5 minutes
Cook Time: 45 minutes
Servings: 10 bars
Author: Renu Agrawal-Dongre



  • 1 Cup – 120 grams – Unsalted Butter
  • 1 Cup – 200 grams – Light Brown Sugar
  • 2.5 cup – 250 grams – Oats
  • 2 tablespoon golden syrup
  • ¼ Cup Mixed nuts and seeds – Optional – I have used a combination of Sultanas sunflower, and pumpkin seeds


  • Preheat the oven to 150 Deg C.
  • Line a square baking tray with parchment paper.
  • In a heavy bottom pan and add in the butter, sugar and golden syrup.
    1 Cup – 120 grams – Unsalted Butter, 1 Cup – 200 grams – Light Brown Sugar, 2 tablespoon golden syrup
    Adding Butter and Sugar in Pan
  • On a low flame melt the butter, sugar, and golden syrup.
    Melting of butter, sugar and golden syrup
  • When the butter starts melting, mix all the ingredients slowly using a wooden spoon or a spatula.
  • Once the ingredients are all mixed together and you see it start bubbling, switch off.
  • Add oats.
    2.5 cup – 250 grams – Oats
    Oats added to the mixture
  • Add nuts and seed mixture if, using.
    ¼ Cup Mixed nuts and seeds – Optional – I have used a combination of Sultanas
    Seeds and Dry fruits added to mixture
  • Mix everything and pour the mixture on a baking tray.
  • Spread the mixture and dab it with the back of the spoon to form a uniform layer or around 1 cm thickness.
    Ready to be baked
  • Bake it in a preheated oven for 40 minutes.
  • Do check the flapjacks after 30 minutes. At times it is not done in 30 minutes and one needs to bake it a little longer.
  • Once done, remove and let it cool for 5 minutes.
  • Cut into the desired shape, when it is slightly warm.
  • Now let it cool completely and store it in an air-tight container.


  • Once the mixture is baked it might resemble that it is not holding together. It needs to be cooled down. Once cooled it should be in the shape.
  • If you feel it has not attained shape at all, bake it for a little longer.
Tried this recipe?Share your feedback @cookwithrenu_ad or tag #cookwithrenu_ad
Disclaimer: I am not a nutritionist. The nutritional information is provided as a courtesy and is an estimate only. It varies depending upon the product types or brands.

Linking this with


#BreadBakers is a group of bread-loving bakers who get together once a month to bake bread with a common ingredient or theme. You can see all our lovely bread by following our Pinterest board right here. Links are also updated after each event on the #BreadBakers home page. We take turns hosting each month and choosing the theme/ingredient.

If you are a food blogger and would like to join us, just send Stacy an email with your blog URL to This month, the Bread Bakers are making Irish Breads, a theme chosen by Wendy Klik from A day in the life on the farm. And don’t forget to check out all the amazing Breads by our talented bakers ~

I am hosting this month and asked the others to join me in sharing Irish Breads in honor of St. Patricks Day which is right around the corner.  Let’s see what everyone baked up for us today……

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5 from 1 vote
Recipe Rating

Mayuri Patel

Sunday 13th of March 2022

Love flapjacks and these Irish Oat Flapjacks are so doable. Have all the ingredients at hand. Only thing that I will do is replace the golden syrup with maple syrup. Will make this healthy and a filling snack for St. Patrick's Day.


Thursday 10th of March 2022

These Flapjacks turned out great. Beautiful texture and taste. Kids loved them as an accompaniment to their cup of milk :)


Wednesday 9th of March 2022

These bars sound amazing! I love golden syrup and these flapjacks are perfect to use them.


Wednesday 9th of March 2022

I very much love golden syrup. These look wonderful, I am looking forward to trying them out! I always seem to forget that our American flapjack is completely different.

Karen @karenskitchenstories

Tuesday 8th of March 2022

Totally not what I was expecting for flapjacks! They sound interesting. We do have Golden syrup available here.