Baking · Gluten-Free

British Flapjacks (Chewy Oat Bars)

Traditional British sweet oat bar treat. They’re soft, chewy and super easy to make! 

Today I’m sharing one of my favourite childhood treats. Classic British flapjacks are gooey, buttery, sweet and make a delicious treat. These flapjacks use one of my favourite ingredients – golden syrup, which not only adds amazing light treacle flavour but makes the flapjacks super squidgy and chewy!

Though you probably won’t have been able to tell by the name, flapjacks are oat bars made using just 4 ingredients. You can also add other additional ingredients that take your fancy such as coconut, lemon zest, a pinch of ground cinnamon/ginger, nuts or chocolate chips.

Chewy, sweet and an easy bake to make to serve alongside a cup of tea or coffee. These flapjacks also make a great breakfast!

Once sliced up, I love drizzling the tops or dipping my flapjacks into chocolate, especially slightly bitter dark chocolate because it contrasts amazingly with the sweetness.

 (Makes 12-16)


175g unsalted butter

175g golden syrup

175g light brown sugar

350g rolled oats (I like using jumbo rolled oats)


1. Preheat oven to 150°C / 130°C Fan / 300°F / Gas Mark 2. Line a 20cm / 8-inch square cake tin with greaseproof paper and grease well. Set aside.

2. Start by melting the butter. Once the butter is melted, add the golden syrup and sugar and continue to cook and stir until all the sugar has dissolved. Stir through the oats. Once the oats are completely covered, spread the mixture out into the lined tin. Press down well with the back of a spoon or a spatula until firm.

3. Bake for 40 minutes, the flapjack should be slightly golden around the edges. Once cooked allow to cool in the tin completely – as they cool the flapjacks will crisp on top slightly. I recommend leaving the flapjacks in the fridge to set before slicing. Once cooled slice into 12-16 squares or 24-32 mini flapjack bites.

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84 thoughts on “British Flapjacks (Chewy Oat Bars)

    1. Your recipe should have the golden syrup in ‘g’not in ‘ml’. It’s too much and therefore rock hard when set.

  1. What an awesome sounding snack, Jess! I must admit that I was a bit confused at first since flapjacks in the States refer to pancakes. Go figure! But these bars sound quite delicious. In fact, I could go for one right about now with my morning coffee!

  2. Helloo!I was wondering if you can explain in a few words what the Golden Syrup is,from which ingredient is made.Is it something similar to honey?I am from Romania and I didn’t hear about this before.I want to know if I can buy this product in my country.Thank you very much and have a nice day!

  3. Looove the golden syrup in these! As an American, I was expecting pancakes, but these are even better!

  4. Ok, when I first read this post, I was all like “Jessica, these aren’t flapjacks”, but I guess in Britain, they are! I thought the same thing David did above, so I was a little confused when I saw bars instead of pancakes, but nevertheless these look amazingly delicious! I could definitely eat these “flap jacks” any time of day! I guess you learn something new every day 🙂 Great recipe!

  5. I’ve never had or heard of flapjacks before, but they look like something I would love eating along with a hot cup of coffee! Yum!

  6. Yesss!!! Finally a recipe for English flapjacks! (Although, I’ve never really looked for one.) In the US, “Flapjack” is another, more Southern, term for pancake, so I was really surprised when I first saw these in England. I will definitely be trying this recipe out!

    1. Thank you so much Christina! Glad you’ve found a recipe for flapjacks! I found that quite funny that flapjacks share the same name as pancakes in the US!
      I hope you enjoy the recipe, let me know how they go! 😀

  7. I’ve been wanting to make flap jacks forever now. They stared selling them at my school and I was in love from the first bite. Your look even better – so thanks a million for sharing. I will definitely be making flap jacks soon, now that I have a recipe.

  8. What an incredible looking flapjacks! I can eat them any time of the day! AMAZING share!

  9. Jessica – I never had flapjacks until I started ordering GrazeBoxes through the mail. I love them! Thank you for sharing a homemade recipe. They look delicious.

  10. I love flapjacks. I came to know them when I was living in the UK.
    When I first move there from Italy I could not find any food I like. One day one colleague of mine back then, offered me a flapjack. I gave it a go, and I have loved these babies ever since 🙂

  11. Since I went to London for the first time (many years ago) I love porridge ! This recipe is for me !! Looks extra !!

  12. Giiiiiiirl, these flapjacks look ah-maze-ing!! I am loving the flavors and how simple they are. I’m going to take your suggestion and try adding some coconut or maybe white chocolate chips (allergic to cocoa). I am totally craving a bunch of these right now. Yummm-iee! Cheers!

  13. Haha, I saw the pictures and had to go back and re-read the title, I was like these are not pancakes… evidently flapjack means something different in other parts of the world :). However, these look amazing, and given their name I’m going to use that excuse to eat these for breakfast, they look amazing!

  14. these look yum! I remember eating these when I was in Scotland 🙂 love the recipe Jess!

  15. I’ve only ever known flapjacks to be pancakes — I’ve never seen this version! This syrupy- oat version looks delicious!

  16. These look like the perfect flapjacks I’ve been looking for! Do you think it would be possible to add chocolate chips to these?😊

    1. Hi Charlotte! I’m so pleased you’ve found the recipe you’ve be looking for! Yes, it would be fine to add some chocolate chips. I would recommend adding about 75-100g.

      Hope you enjoy the recipe. Let me know how you get on! 😀


  17. These look delicious, I’m going to make this week. I do need to know, however, what golden syrup is? Is it maple syrup? Plain syrup you’d put on pancakes or waffles?

  18. I tried your recipe it came out very well I used the salted butter instead of unsalted butter and lessen the measurements as I was trying something sweet for the first time… I never followed any recipe your recipe is first recipe I am trying.. thanks to this recipe and to you who shared the recipe everyone liked it so thumbs up for your recipe 🙂

  19. Being English my Mum made these every week for us, and they’re still a firm favourite many years on. Try adding dried fruit (cranberries are my favourite) as an alternative and you can dress them up with melted chocolate too.

    1. Hi Maxine – thanks for stopping by my blog. Flapjacks are a firm favourite with my family! I actually made these again recently and drizzled each piece with chocolate and they were really yummy. I love the idea of adding dried fruit to the flapjacks, I will definitely give that a try sometime!

  20. Hi Jess-just finished making my first batch of flapjacks back here in Canada after trying them last month in England. When I went to pour the mixture into the pan it was really ‘soupy’. It’s cooling right now and I’m hoping will solidify a bit? Is this normal? Or should it go into the pain more like a Rice Krispie square (more solid than liquid)? Just curious!

    1. Hi Kristy – if I remember correctly this flapjack mixture before baking is quite liquid, but should set/solidify as it bakes. It’s totally normal and the mixture needs to be like this otherwise the flapjacks might be dry and not have a moist texture. Hope they turn out well for you and that enjoy the recipe! Let me know you get on!

  21. Dear Jess, I’m from Russia and I want to do my best in cooking so delicious flapjacks. Then I make it last time, my flapjacks was very dry and crumble, but i did it based on the receipt. What’s my mistake tell me please

    1. Hi Katrin, I’m sorry that you had problems with this recipe. Some reasons why it may have been dry and crumbled could be because the mixture needed to be pressed more firmly into the tin, this ensures they’re no air pockets which may cause the flapjacks to crumble when baked. Also, the flapjack needs to be cool before you slice it, I find putting the flapjack in the fridge overnight is a good solution (this should help it set and stick together). If this doesn’t work, you could definitely try adding less oats. Personally I’ve always found the ratios in this recipe just right, but ingredients in different countries can range from one another. I hope that helps answer your question.

  22. Have never been able to make flapjacks until
    This recipe, I put them in the fridge to cool and they were amazing, family even said they were the best flapjacks they’ve ever had. xx

  23. How could I bring the sugar and fat content down? Would apple juice n veg oil work n what quantities. Any thoughts?

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