Millionaires Shortbread – Back to Basics!
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A complete ‘how-to’ guide on how to make millionaires shortbread! A homemade shortbread base, homemade caramel filling, and a chocolate topping.

So it’s been a while since I posted my last ‘back to basics’ post – my last being my no-bake lemon cheesecake post in May last year. And after the success of my youtube video on how to make Millionaires Shortbread, I thought I’d do the blog post for it too
I have obviously made quite a few millionaires shortbread recipes already, but I thought I would cover it down to every last detail. Basically, completely dumb it down into the ground so that if you are scared to make it, you won’t be any more

Shortbread
For the shortbread, it really is quite basic – you can do it by hand, or in a food processor, or in a stand mixer, or with an electric hand mixer. You just want to mix the sugar and butter together until creamy, and then add the flour and combined until a dough is formed.
If you are doing this by hand, you can add all three ingredients together, making sure the butter is cold and cubed, and rub the mixture together with the tips of your fingers until it creates a bread crumb texture. Then, you effectively knead it together to form the dough.
I always tend to use classic unsalted block butter but you can use a baking spread for this bit if you prefer. I just prefer the taste when it comes to real butter. When using a mixer to make it, you add the butter and sugar together, beat until creamy, and then add in the flour and combine.

Baking
Press the shortbread into a lined tin – I use a 9″ square tin – and make sure it’s even. I use a 9″ square tin as it’s the ultimate depth for the number of ingredients I use! If you use a smaller tin, it will take longer to bake – if you use a larger tin, you might have issues as the shortbread really isn’t that thick.
You bake it in the oven at 160ºc in a fan oven, 180ºc regular, and bake until it’s starting to golden. When it’s starting to golden, and it’s been in for at least 20-25 minutes, you’ll know it’s baked through.


Caramel
For the caramel, you REALLY have to work on it. You can’t cheat and use a tin of carnations caramel and stick it on top as it doesn’t set. You can’t really skip the steps, as it really is a caramel. I don’t often make my caramels from complete scratch as many of my readers prefer the easier versions, and I get that, but for millionaires shortbread? You do.
You have to make sure to stir the caramel a lot to prevent it from catching and burning. I use a medium level of heat, and a larger pan so its easier to stir. You have to be careful as it obviously does get VERY hot, but it’s worth it. It is delicious and heavenly.
I use a gas hob because I much much prefer it for making caramel. I get that not everyone has gas though – some have electric, some have induction – but on my gas hob, I usually use between level 7 and 6 of strength on a medium-size ring, on my 9 level hob.
You want to use actual unsalted butter – as it creates the best caramel. I use golden syrup, because it creates the most wonderful caramel, as I explain in my video. If you can’t access golden syrup, however – I suggest using the caramel from this recipe post instead.

Caramel problems
I’ve received comments about people getting little dark coloured lumps in the caramel, and this is down to catching. Once it’s caught, there isn’t really anything you can do, other than preventing it from getting any more burnt.
If your caramel is grainy by the end, that’s because you didn’t dissolve the sugar properly at the beginning. You really want to slowly melt the condensed milk, golden syrup, sugar and butter together before it starts to boil – then it will be lovely and smooth.
The timing is something I can’t really narrow down on. It takes between 5-7 minutes to boil. This can vary depending on the type of stove you use, the brand of ingredients, the pan you use, and so on. I don’t boil the caramel to temperature, and I never have.
Once you have poured your caramel onto your shortbread, you have to leave it to set. I usually do this in the fridge because it’s quicker. Once it’s set, you add the chocolate


Topping
The chocolate part is quite straight forward – you just want to melt it, and cover the top, and let it set as well. I used a mix of milk and white chocolate, but you can use whatever you fancy! All milk, all dark, all white.. or all three! Any flavour you fancy too. It’s epic and easy.
I find it easier to melt my chocolate in a microwave, but this is something I have done many times. I know my microwave in and out, but if you don’t have on, you can melt your chocolate in a double boiler which is a bowl, over a pan of simmering water.
Of course, once you have decorated your millionaires with the chocolate, you need to leave it to set. I find it easier to set it in the fridge as it’s much quicker, but that is optional. If you set it at room temperature, then it will take longer but it will be easier to portion.

Portion
So… once you’ve reached the end of making it, you enjoy it. However, cutting it up can be an issue for some. As I used a 9″ square tin, I use a 26cm knife to cut it. This is because the knife is larger than the traybake, and it makes it a hell of a lot easier. I tend to make sure it’s straight, score the chocolate ever so slightly, and then just cut straight down.
You can try a few different other things, such as scoring the chocolate when it’s not fully set yet, or heating the knife before cutting – but honestly, I just find using a large and sharp knife and going straight down is the best method for me. Some people even try cutting the traybake upside down so that the chocolate is the last bit you cut through.

Top tips
If you find once your millionaires shortbread is finished, that the caramel is rock solid and more like toffee, you overdid it slightly on the boiling. It’s best to keep and store it at room temperature from now on, so it’s at least not fridge cold hard. If your caramel is too soft, you didn’t do it for long enough, so should definitely be kept in the fridge.
You want to use a good quality pan if you can, as some pans have a very thin base. Basically, if the base is too thin, you might burn the caramel. So if you are worried, take the temperature down a notch and do it for a little longer instead to prevent any catching!
You also want to use a flat bottomed spatula, like these ones. Using a spatula with a sharp corner means you can really scrape the caramel, and prevent it from catching in the corners!
- I use this 9″ square tin
- The millionaires shortbread will last for 7 days at room temperature, or in the fridge
- The millionaires shortbread can freeze for 3+ months


Millionaires Shortbread!
Ingredients
Shortbread Ingredients
- 200 g unsalted butter
- 100 g caster sugar
- 300 g plain flour **
Caramel Ingredients
- 200 g unsalted butter
- 3 tbsp caster sugar
- 4 tbsp golden syrup
- 397 g condensed milk (one tin)
Decoration
- 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.
- Cream together the sugar and butter in a stand mixer with the paddle attachment until smooth – mix in the flour until a dough is formed. It will be crumbly but the ingredients will be evenly dispersed!
- Firmly press the mixture into the bottom of tin and bake in the oven for 20-25 minutes until pale golden on top!
- Once baked, remove from the oven and leave to the side. In a large saucepan pour the condensed milk, butter, sugar, and golden syrup 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 for 5-7 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 shortbread base and leave to set for an hour in the fridge.
- Once set, melt the milk chocolate and pour over the caramel – melt the white chocolate and pour over too - swirl it into the milk chocolate with the end of a cake skewer so it forms a pretty pattern.
- Chill the shortbread back in the fridge for another 1-2 hours until the chocolate has gone hard**!
- Chop your shortbread into the separate pieces and enjoy!
Notes
- This will keep in an airtight container for at least 1 week – if they last that long
- If you can't access golden syrup, you can give corn syrup or honey or similar a go, but I have not tested these as much. Alternatively, you can use my millionaires flapjacks caramel
- If your 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.
- **If you struggle to cut your shortbread and tray bakes without the chocolate cracking on top, set it at room temperature rather than in the fridge and it’ll be softer so therefore won’t crack when you cut it
- I recommend using a 9" square tin like this one
- I also recommend using a spatula like these to prevent any catching
- And if you are wondering - this is the golden syrup I use.
- ** recipe updated to be 300g instead of 275g plain flour for ease of using a 1:2:3 ratio with sugar, butter and flour - both quantities work well so continue to use 275g if you prefer it.
ENJOY!
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J x
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Hii! Thank you for your recipe! I tried making it today and it looks pretty good… Except for the shortbread. It looked beautiful in the pan but when cutting basically half of the shortbread was just falling off the other layers? My shortbread was very much a dough instead of crumbly before baking but I figured it was fine – was it not? I followed the gr amounts, could I have over mixed it? My butter was very soft too, could you maybe guess what the biggest mistake was? 🙁 I want to do better next time!
Mine was too! Definitely not ‘short’ bread.
I used it as a base so didn’t make the caramel so can’t comment on that. Would use again sorry
Hiya, do you have a recipe for a rectangular traybake 30cm x23cm ? Or a rough guide, pls?
I do a rectangular one of similar size, I use
Shortbread ingredients
• 250 g unsalted butter
• 125 g caster sugar
• 375 g plain flour
Caramel Ingredients
• 300 g unsalted butter
• 4 tbsp caster sugar
• 5 tbsp golden syrup
• 530 g condensed milk
Chocolate
300 g milk chocolate
• 50g white (I just do a simple feathering design – obviously you can use more to be more decorative)
hi all recipe always goes well for me but i mess it up at the cutting stage!
so, how does everyone get a nice cut without the choc cracking or the caramel oozing?
do you use a hot knife?
do you take the bake out of the tin to cut or keep it within the tin for structure?
do you let it sit out out of the fridge for a while before cutting?
I use a pizza cutter or a very heavy duty sharp knife and do it straight from the fridge Hope that helps
yes, a hot knife gives a smoother cut, I usually run it iunder hot water, dry and then cut the shortbread. ❤️
I did it as shown on the video. And that was straight out the fridge. Other times I’ve made millionaires shortbread, it has cracked. But I scored it then pressed down with a long carving knife and it was fine. That said, I reckon the chocolate on top was at least twice as thick as my previous efforts!!! Maybe that’s the secret??!!
Cut it after an hour of putting chocolate on
I have made this recipe a couple of times now and each time, when I make the caramel, I pour off some of the butter that comes to the top when I take it off the heat. My caramel is then nice and not slippery.
Hi what pot do you use to nake your caramel in? Thank you
My caramel went a very odd grainy, not sugar grainy. Followed the recipe and instructions carefully but have had to ditch the caramel. Do you have any idea what could have happened – I’ve been baking and making most of my life and never met this problem with caramel before.
This means the caramel may have split – you can take it off the heat and beat it like crazy (an electric beater helps here) to bring it back x
My shortbread was very crumbly when cutting these, flavour wise great but some of the shortbread broke away. Any suggestions?
You really do need to compress it as much as possible before baking, and it can crumble slightly if over baked! x
We’re addicted to this….can’t stop making….and eating….send help!!! 😂
My caramel had golden bits in it 😢
This means it’s caught on the bottom of your pan if you haven’t stirred well enough or the heat was too high – it’ll still set completely fine and taste fine!
Fantastic Millionaire’s shortbread, soft and delicious caramel, melt-in-your-mouth shortbread, excellent ratio of chocolate. Once I’d swirled the chocolate, I added some guylian seashells on top, which elevates this excellent recipe into a sublime one. Thank you!
Hello,
I’ve made a bunch of variations while I was cooking in Ldn,
Giving yours a go since my kids’s school asked for some parents to bake some cakes /treats to celebrate the elderly.
That being said I thank you for your recipe so far it looks like good.
I did have to replace the golden syrup with Maple syrup on a ratio 1:1. Caramel is ok.
Base is solid after cooking 25 min on fan 160 like you’ve instructed.
Tip for the cutting ( and I know allot of you might know this) I dip my sharp knife in warm water and then dry it with a cloth or a paper towel immediately before cutting .The result will be a nice and shiny edge.
Good luck with your book and stay strong !
Came out so good and not at all difficult to make. Will definitely make again.
Can you omit the syrup?
Can I use a sugar thermometer for the caramel. If so, what temperature should it be.
I’ve just made this and it’s looking fab – thanks for all the tips. One question I have is, how do you measure your golden syrup. I find it easier to measure warmed, but a runny tablespoonful is not the same as a cold thick tablespoonful!
Personally I’d like slightly thinner layers – though my husband will disagree! – I think I’ll try it in a 10” tin next time. Otherwise it’s gorgeous ❤️
It’s quite easy. Use a digital scale and measure everything in grams. Place pan on scale and zero it after each addition.
One tablespoon is 15g so 4 tbs of syrup is 60g. Just squeeze or pour out the syrup straight into the pan until you get the weight you need. Zero the scale after each ingredient has been added so you don’t get confused. Hope that helps! 😊
Hi there, I have a 10” square tin how would you scale up the recipe so that it is a good thickness for a 10” size, so I don’t have to buy a 9” tin 🙂
I would actually do the same quantity in a 10”. I find the caramel is way too deep here in a 9”. Just add a little more chocolate to keep the thickness of the topping.
Hi there my woman and I have both made this and it’s the best 1 yet and the family all say it’s banging thank you for your recipes keep up the fantastic work well played 5*