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!
Find my other Traybake Recipes on my Recipes Page!
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J x
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This is the best millionaires shortbread recipe I’ve found!
Hey, my tray is slightly bigger. Was thinking of adding 30% extra to each ingredient. Would thay work out ok?
It depends on the exact size of your tray x
Made today, omg amazing!! So easy to follow, clear step by step instructions. First time making it ana all my family and I can say WOW! I don’t think it’ll last last in my fridge with four young men in the house. Thank you so much for your amazing recipe & blog. Will definitely make again ❤️
They turned out beautifully! My friends said they look so professional! 💗
Made these a few times, always get a good review however I find that my caramel isn’t as dark/rich in colour as your above pics I followed the recipe/yet vid exact same ingredients and similar timings but I find it ends up more of a light gold than a rich colour,
any tips on how to get it darker?
The colour can come from different brands of ingredients but also the colour doesn’t matter as long as it sets well in my opinion x
Hi Jane
I was just wondering how deep the tin needs to be – I have a tin that seems the right size 25cm x 21cm but it is only 3.6cm deep/height. Is this deep enough for the ingredients without overflowing? Or will I need a new tin? Would you recommend altering the recipes measurements instead?
Thanks for your help, can’t wait to bake these!
P.s if anyone else has any experience with a similar issue I’d be grateful to know your experiences x
Hey, this should be fine for millionaires shortbread. I hope you love them when you do!xx
Made double so I could take some to work but my standard pan wasn’t quite big enough when I was making the caramel so that was me cleaning the cooker top! Turned out great though!
Tried making millionaires for the first time and it turned out almost perfect except for catching the caramel. How long will these keep for and how should I store them. It’s a lot of short bread for only two people!!!
I generally keep them in the fridge as I like them cold, but fridge or room temp for like 1+ week! x
These were so yum! 😍 I have a recipe request, I can see it in my mind but have no idea how to execute it 😂 millionaires shortbread but with a strawberry shortbread/shortcake base, then the caramel, and then topped with white chocolate with a pink colour white chocolate swirled through or sprinkled with freeze dried strawberries. Pleaseee can you do a recipe for this! Xx
Jane!! I’ve tried doing this recipe today and I don’t know what’s happened to my caramel, I have picture and I want to show you so you can tell me how do I do this!!
It’s soft too I don’t know if I’ve under cooked it I tried to follow your video too!
Please help me!!
Hey! Are you sure you used the correct condensed milk?xx
I just made it yesterday for my daughters birthday and had the same issue 😔 Was stirring along with the YouTube video and was convinced I was going to get it right this time. I’ve made millionaires shortbread many times to various recipies always with the same end result-too soft caramel
Hi Jane,
Would the caramel recipe work with a tin or carnation caramel instead of condensed milk? Using the same method you have put above?
If you still follow the same method by boiling it etc it will work (The colour is just darker straight away so its harder to tell when its done) but you definitely can’t just pour the tinned caramel on the shortbread xx
Fab recipe which worked first time. Thanks. I’m wondering if I can make the caramel with less or even no sugar as I found it a bit sweet, or would the caramel not ‘work’ without the sugar?
Thanks
Hey! The caramel wouldn’t work without sugar but you can add salt to counteract the sweetness xx
Made this today for my husband’s work as they have a colleague retiring, made enough for us to have some. It’s the second time I’ve made millionaire shortbread but the first time using this recipe – absolutely delicious!
Hi Jane, oh I’m in a bit of predicament and just praying that the shortbread cooked right, so long story short I had a feeling the shortbread mix shouldn’t have ended up just being like coarse flour instead of a dough when all the shortbread ingredients were mixed, but I pressed it into the tin anyway, that looked fine i thought and it did look fine when it came out of the oven, the caramel turned out perfect except for some brown flecks, it hardened up well after the hour and the chocolate melted and poured on fine, but I’m just waiting very nervously to see if when I cut it that the shortbread will just crumble into smithereens, what do you reckon?
Hey! How did it turn out?x
Hi Jane, fairly well thank goodness, obviously just more crumbly than it should have been but it still stayed together quite well when sliced, I will know for the next time, but it tasted absolutely amazing and brought me back to my childhood when that was my favourite treat to choose when we did the weekly grocery shop, I’m going to tackle another of your millionaires tomorrow and this time nail the shortbread, thanks for your quick reply xx
Hiii, could I use honey instead of the golden syrup? xx
I haven’t tried it with honey myself x