Mars Bar Brownies!
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Easy and fudgey Mars Bar brownies! So chocolatey, so delicious!
Mars Bars brownies
It’s the time to have something so chocolatey, that you’ll want to make them again and again. These Mars Bar brownies is exactly that. So unbelievably chocolatey and fudgey they are on a next level. Are you intrigued yet?
Anyway. I thought I would start this recipe post off with a statement that makes you go these MUST be good, and then you’ll see the pictures and be like oh heyyy look at them, yes, they are amazing. And I really hope you guys did because I certainly did.
Mars bars and Milkyway bars (US)
From the beginning I must say that Mars Bars in the UK, are Milkyway bars in the US, so if some of my American readers are a little confused right now, just roll with a Milkyway instead. I finally found out why there is a different in name the other day (due to a family spat back in the day), and I was surprised that that was all it was.
Even so, Mars Bars are the one. They are slightly underrated in my opinion, but I do adore them. For those who have never experienced the wonder that is a Mars Bar… they are nougat and caramel, coated in milk chocolate. They are delightful.
Mars Bar recipes
When I was thinking about what chocolate bars I should bake with, I wanted to use one I hadn’t tried in a while. I’ve used Mars Bars four times on this blog already, my favourite time being my Mars Bar cheesecake, but it was so long ago!
These brownies came about because of my craving for something Mars Bar, and also because they were on offer in the supermarket I was in at the time so that made the bake cheaper. Always handy in my books. I couldn’t resist!
Dark chocolate
I went for a classic style brownie, that I have used in so many recipe posts now. And I will say it time and time again, PLEASE USE DARK CHOCOLATE IN THE BROWNIE MIXTURE. I don’t really care if you ‘don’t like dark chocolate’ it will make such a good brownie, and not too ‘dark’ a flavour, so PLEASE stick with it.
If you use milk chocolate, the mixture is so much thinner, and when people moan to me that their brownies didn’t bake properly, and say they switched to milk chocolate then that is why. It doesn’t work the same, and doesn’t make them nearly as fudgey. Dark chocolate is the best.
Brownie
The key really is to make the brownie mixture as thick as possible, and dollop on all your Brownie bits. When the caramel and nougat bakes, it’ll make little pockets of deliciousness for you to enjoy, and they are just a combination to behold. SO tasty!
Freezing Mars Bars
I realise its a faff, but freezing the Mars Bar bits before baking really is the best practice so they don’t explode everywhere completely and utterly, but its not completely essential. However, if you can, I would 100% recommend it!
These brownies are so fudgey, so moreish, and delightful. I really hope they live up to your expectations for my latest Mars Bar creation! Enjoy! X
Mars Bar Brownies!
Ingredients
Brownies
- 200 g dark chocolate
- 200 g unsalted butter
- 3 large eggs (or 4 medium)
- 275 g light brown sugar
- 100 g plain flour
- 50 g cocoa powder
- 300 g Mars Bar (chopped & frozen)
- 100 g milk chocolate chips (optional)
Optional Decoration
- 50 g milk chocolate (melted)
- Mars Bar pieces
Instructions
- Preheat your oven to 180C/160C Fan and line a 9x9" baking tin with parchment paper!
- Melt together your dark chocolate and unsalted butter until smooth in the microwave or in a bowl over a pan of simmering water. Leave to cool for a few minutes
- Using an electric whisk/stand mixer, whisk your eggs and sugar together for 5 minutes or so on high speed, or until the mixture has doubled in volume, is alot paler, and leaves a trail for a few seconds when you lift the whisk out.
- Pour in the chocolate/butter mix and fold through very carefully.
- Add in the flour and cocoa powder and fold through carefully again.
- Add in your frozen chunks of Mars Bar and chocolate chips and fold in. Pour the mixture into the tin and bake in the oven for 25-30+ minutes.
- Leave to cool in the tin, and then enjoy!
- To decorate your brownies if you fancy it... melt your chocolate and drizzle over the brownies, and add pieces of Mars Bar to each one! Set in the fridge, then chop up and enjoy!
Notes
- Please try and freeze the Mars Bar first as it'll work so much better!
- These will last for one week+!
- You can use caster sugar instead of the brown sugar, the brown sugar just works really well for the Mars Bar theme!
- If your brownies are taking much longer than stated to bake, your oven may have been the wrong temperature, or you over mixed your batter. Keep adding on 5 minutes till they're done and cover with foil if need be!
ENJOY!
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J x
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Hi jane, would I be able to use twix instead of mars bars? and would they also need freezing before hand?
Thanks!
Have made these & snickers before. My fave brownies. But as my partner doesn’t like chocolate much, what size tin would I need to do half the recipe? And would this alter the baking time? Thanks!
Love your recipes. Wish you would do some with peanut butter
Hey! Yes, so half I would use about a 7″ square, and baking time is less but I’m not certain how long x
Hi Jane, made these the other week and they were gorgeous, though was asked to try these without the mars bar pieces, is that possible? Or do I need to add and replace things ?
Thanks Jane !
Yes you can just remove the mars bar! xx
Hi! I want to make this today. I want chunky pieces of mars on top, should i add them on top towards the end of the baking process, or add them on top afterwards like you did ( I am worried they will fall off)
They stay on top with the melted chocolate, but if you don’t want that then towards the end of baking!!
Hi could I do this with boost bars?
Yep!
Hi Jane,
What would I have to do if I wanted to put Jaffa cakes inside? Would they need to be frozen or can I just put them in? Thank you! X
Also could I add caramel to this mars bar recipe if I halved the mars bar amount and added in the caramel? X
Yes that should be okay!
Jaffacakes should be okay as they are!
Amazing recipe. Easy to follow and the most delicious brownies!
Hi, I want to make a few batches of different flavours, could I replace the chocolate for different types? Like crunchie, Maltesers, and all that? Also do you freese the chocolate before baking? Or can they go in room temp?
It depends on what you add – some chocolates may not work nearly as well, some dissolve completely. For example, if you have a look at my Malteser brownies recipe, I don’t add Maltesers to the batter itself! Maltesers and crunchie are probably two of a few which aren’t always the best to bake with!
Oh I see, so you just add to the top of the brownie?? What chocolate would you suggest that I could just add to make different flavours with this mix? I made the terrys chocolate orange ones yesturday and our amazing!!
Basically yes! So anything like a mars bar like snickers, rolos, etc with softer centers you can freeze, any other bar like dairy milk, galaxy, etc you can just put in! x
Aww brilliant!! Thank you so much!!
I always bake in the evening. Would you suggest I leave out in the kitchen over night to cool properly or Pop in the fridge? I just made these and they are totally amazing!!! Had to have a scoop straight from the tin and soooo good hot!
I usually leave them out overnight with a tea towel on top or something! x
Thank you. I did leave them out covered over, this morning they are even more delicious. These have got to be the best ones I’ve baked yet. Definitely not share worthy! 😂
Hi, I was just wondering if I’ve not got quite enough light brown sugar should I mix light brown sugar and caster sugar or all caster sugar?
Thank you!
I’d use as much light brown as you can, and top up with caster!
Thank you!
I ended up finding light brown sugar after the 3rd shop haha! Definitely worth it! Someone said they were the best brownies they’d ever had! Thank you for the amazing recipes! X
Amazing. ..that is all.
I tried these and they were amaaaaazing, although I made them in a 9×13 inch tin and they were a little thin any recommendations on how I could increase the recipe to make it a little thicker?
Thanks
Hey – yes that’s far too large for these quantities! I’d use 1.5x the recipe!
Hi Jane can you use best for baking butter in your brownies recipes or is unsalted needed?
Hey – I’m not 100% sure what brand that is, but generally in brownies you can use either block butter or baking spreads!
Silly question but how do I know when the mars bar brownies are ready? Have put skewer in. Does it need to come out clean? Thanks
I usually say a small wobble in the middle, and maybe a skewer with a small amount on? It’s hard to say if a skewer should be clean because of the chocolate chips/mars bar, but it definitely shouldn’t be coated in mix!
Loved the recipe! What do you use to cut your brownies so perfectly?
I just use a large sharp knife! As the tin is 9″, I use a 10″ knife so it’s a clean cut downwards!
Can I use caster sugar as not got enough brown… or got granulated… can I swap the mars bars for snickers? X
I would use caster sugar, and yes you can – still freeze though!