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 A deliciously soft and chewy flapjack topped with a homemade caramel and swirled chocolate – this millionaires flapjack is scrumptious!

A cluster of Millionaires Flapjacks - side view

Millionaires

As we all know, I am quite the fan of a millionaires shortbread. Luckily for me, I have made and eaten countless of these over the years, and I really do not get bored of them. After all this time, I do think a homemade one is the best of the best, but even the little bite versions you can buy at a supermarket get me every time.

I have my classic millionaires shortbread recipe as part of my back to basics series, and I love it. I have variations for occasions such as chocolate orange millionaires, or even my mini egg millionaires for easter, and I just can’t get enough of them.

A buttery delicious shortbread, topped with a homemade caramel, topped with chocolate. You can make it as basic as you want, but it’s still tasty. I would ALWAYS recommend making your own caramel as well, because a tinned/jar version simply does not set, and it tastes a lot more sickly in a bake like this.

3x millionaires flapjacks on their side in a group of other slices

Millionaires flapjacks

Years ago I went to one of my local favourite tea rooms, and they had a millionaires flapjack recipe. This is just something that blew my mind in the moment as I just hadn’t considered using another base at the time. This bake is why I wrote this recipe, as it gave me so many more ideas.

I have since done other versions with different bases as well, such as my millionaires cookie bars, millionaires brownies and millionaires blondies. Basically, any traybake you can think of, topped with caramel and some chocolate and I am extremely interested.

The texture of a flapjack for me is chewy, tasty but not so rock solid it breaks your teeth. You can add other ingredients if you want to a flapjack, but for these to make sure it all works together I went for quite a simple flapjack.

multiple stacks of three millionaires flapjacks

Flapjacks

Flapjacks appear to be one of those bakes, that sometimes just don’t work for people. They are an extremely simple mix of ingredients, but the ingredients that you end up using are quite important. I have simplified this recipe as much as I can to make it as accessible as I can.

  • Butter – I’ve always said that using a block butter is best for a flapjack, as sometimes the additional ingredients in a spread can make the mixture not bake properly, become sloppy or oily.
  • Sugar – Usually, I use light brown soft sugar as I use it in so many bakes, and it’s also used in the caramel in this particular recipe. You can use caster sugar if you want, but personally I would switch it for a muscovado sugar instead.
  • Syrup – Typically, I use golden syrup, or honey in my flapjacks. You can use either, or a mixture (depends what you have in the cupboard). As explained later in this recipe, I made the caramel differently to normal in case you don’t have golden syrup where you live, so you can easily use honey for this part.
  • Oats – I recommend using rolled oats, the larger ones. Often I find flapjacks can be a little broken or sloppy if you use a small oat, quick oat, or some porridge oats.

Millionaires Flapjack on a plate with a bite taken out of it

Caramel

So, I will explain it here so you all don’t panic – this caramel is different to the other caramel recipe I often use in my millionaires shortbread. There is a reason, and there is nothing wrong with the other one – it’s simply to show a different sort of caramel that doesn’t use golden syrup.

In the UK we have golden syrup readily available in most shops, but it’s not a common ingredient across the world. I wanted to post a simple three ingredient version of a caramel to show a different method should you wish to use it – and this is it. It’s easy, and delicious still.

  • Butter – again, I will say block butter is best for a caramel compared to a spread or margarine, because the block butter is much more pure and shouldn’t split your caramel.
  • Sugar – I use light brown soft sugar because I want it to be the same as the flapjacks, but it’s also what gives the caramel it’s delicious flavour and colour.
  • Condensed milk – in the UK our condensed milk is usually already sweetened, so I use one tin of that. You want to use the classic full-sugar and full-fat version for best results.

I will say again, please make your own caramel. If you use a tinned or ready made one, they just don’t set the same way and don’t taste nearly as nice in a bake like this in my opinion.

Piled millionaires flackjacks in rows showing the feathered chocolate

Chocolate

When it comes to the chocolate of a bake like this, you can kind of do what you want. You don’t even have to top the bake with chocolate if you want, or you can do something different such as top it with nuts and a drizzle of chocolate like in my nut slice recipe.

I went for a milk chocolate base, and then added in some white chocolate and swirled this through. I tend to melt my chocolate in the microwave as I find it easiest, but if you don’t have a microwave you can use bowls, over a pan of gently simmering water (making sure to get no water in the chocolate), swirl the chocolate through with a skewer.

a stack of two millionaires flapjacks

Tips and Tricks

  • Recipe post updated April 2025 – no changes to the recipe 
  • This will keep in an airtight container for at least 1 week
  • They can freeze for 3+ months 
  • You can use the other caramel method from my Millionaires Shortbread if you prefer it
  • If you caramel is rock solid when you remove it from the fridge, you have slightly over done it. Not to worry though, when you pour the chocolate on, leave it to set at room temperature rather than in the fridge and it should soften the caramel slightly.
  • You can add in a pinch or two of sea salt to your caramel to make Salted Millionaires Flapjacks!

slices of millionaires flapjacks cut into squares

Millionaires Flapjacks!

A deliciously soft and chewy flapjack topped with a homemade caramel and swirled chocolate - this millionaires flapjack is scrumptious! 
Print Pin Rate
Category: Traybakes
Type: Flapjacks
Keyword: Millionaires
Prep Time: 25 minutes
Cook Time: 25 minutes
Setting & Cooling Time: 3 hours
Total Time: 3 hours 50 minutes
Servings: 16 Pieces
Author: Jane's Patisserie

Ingredients

Flapjacks

  • 175 g unsalted butter
  • 125 g light brown sugar
  • 125 g golden syrup/honey
  • 325 g rolled oats

Caramel

  • 175 g unsalted butter
  • 175 g light brown sugar
  • 397 g condensed milk (one tin)

Topping

  • 200 g milk chocolate
  • 100 g white chocolate

Instructions

  • Preheat your oven to 180ºc/160ºc fan, and line a 9x9inch deep square tin with parchment paper.
  • In a medium pan, add the butter, sugar and syrup/honey and melt on a low heat till smooth.
  • In a large bowl, pour the rolled oats and pour on the melted sugar/syrup/butter mixture and mix together. 
  • Firmly press the mixture into the bottom of tin and bake in the oven for 20-25 minutes until starting to brown around the edges!
  • Once baked, remove from the oven and leave to the side.
  • In a large saucepan pour the condensed milk, butter and sugar and melt on a medium heat until the sugar has dissolved – stir frequently to stop anything from catching.
  • Once the sugar has dissolved, turn the heat up high and let the mixture come to boiling point and boil constantly for 3-4 minutes stiring constantly so that the mixture doesn’t catch. BE CAREFUL as the mixture is VERY hot and can burn you if it splashes back! 
  • The mixture will be ready when it has changed to a slightly darker golden colour, and has thickened to a soft fudge texture!
  • Pour the caramel onto the flapjack base and leave to set. Either set it in the fridge for 1-2 hours to be quick, or room temperature for a not-so-chewy treat
  • Once chilled, melt the chocolates and pour over the caramel – Swirl them together with the end of a cake skewer so it forms a pretty pattern. 
  • Chill the traybake back in the fridge for another 1-2 hours until the chocolate has gone hard, or again at room temperature for a not-so-chewy treat and so its easier to cut**!
  • Chop up the millionaires flapjacks into the separate pieces and enjoy

Notes

  • This will keep in an airtight container for at least 1 week
  • They can freeze for 3+ months 
  • You can use the other caramel method from my Millionaires Shortbread if you prefer it
  • If you caramel is rock solid when you remove it from the fridge, you have slightly over done it. Not to worry though, when you pour the chocolate on, leave it to set at room temperature rather than in the fridge and it should soften the caramel slightly.
  • You can add in a pinch or two of sea salt to your caramel to make Salted Millionaires Flapjacks!

 

64 Comments

  1. Arch on October 22, 2024 at 6:09 pm

    Hi, for the caramel can I use a tin of sweetened condensed milk and then add the sugar or I should I skip the sugar. Asking as only have access to sweetened condensed milk tin.

  2. Zoe on October 13, 2024 at 8:57 am

    Hi –
    What rolled oats can I use please? I can only find porridge oats. Where can I get rolled oats from please?

  3. Bev on May 23, 2024 at 8:26 pm

    5 stars
    23/ 05/ 2024 not done baking until recently when I decided to give it a go so as this is one of my son’s favourite recipes I said I would give it a go and OMG I’m supper proud of myself it came out absolutely amazing not too sweet just perfect my son said it’s one of the best I’ve done so far I even managed to get the affect on top with the chocolate. Thank you Jane for sharing your recipe I’m hoping to do the millionaire shortbread next.

  4. Iz on May 10, 2024 at 6:41 pm

    5 stars
    I love these!! I just cannot get the caramel right it won’t set it’s runny 😭

    • Jane's Patisserie on May 25, 2024 at 9:36 am

      Are you making the recipe as it is written or using a ready made caramel? If you are making your own and using the correct ingredients it needs boiling for longer x



  5. Mandy Barker on December 3, 2023 at 8:14 pm

    Hi, can I freeze these? Thank you ☺️

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