Mars Bar Brownies

Mars Bar Brownies are the brownies to end all brownies. The rich chocolate batter is made even better with oozing caramel sauce and melty chunks of Mars Bars throughout.

Mars Bars are the ultimate nostalgic treat, so this recipe is a luxurious take on a comforting classic.

Mars Bars in the UK as around most of the world are irresistible bars of chocolate-coated nougat and caramel. However, American Mars Bars are different from the rest of the world.

In fact, Mars Bars have been discontinued and relaunched several times in the US and they now contain almonds (known outside the United States as a Mars Almond bar).

Feel free to use either kind in these brownies, but if you can, try and get your hands on original UK Mars Bars because UK chocolate is the best!

This recipe for these Mars Bar brownies is sort of like making a Mars bar sandwich. First, you'll make a gooey chocolate brownie batter. Then you'll pour half of it into a lined baking tray.

Next, you'll add a layer of caramel sauce and mars bars. Then you'll cover it with the rest of the batter and top with some more caramel.

You'll bake the brownie sheet for around half an hour or until cooked enough that it passes the skewer test (for brownies - you want sticky crumbs!).

The hardest part is leaving it to cool. You'll need to resist eating it until it cools and firms up overnight in the fridge so you can slice through it cleanly!

The result is squidgy, impossibly delicious Mars Bar Brownies.

I especially love eating these brownies with vanilla ice cream because it.

I think these Mars Bars Brownies would be perfect served warm with a scoop of vanilla ice cream to cut through the richness. Or you could break pieces up and add them to an ice cream sundae.

The full method for making these Mars Bars Brownies is below. There are detailed steps and I've also included plenty of clear photographs so you can see how they should look as you go along.

If you have any questions or get stuck, scroll down to the FAQ section for more tips. Don't worry if you can't find the answer to your question, you can always drop me a comment below.

Instructions

Preheat the oven to 180C (160C fan).

Make the brownie batter

Grease and line your tin.

Put the dark chocolate and butter in a large microwave-safe bowl.

Microwave in 30-second bursts, stirring between each burst until melted. Avoid overcooking as this can negatively affect the chocolate.

Add the caster sugar.

Stir through with a manual whisk - I say stir as you don’t want to add air but a whisk is still the best tool as it distributes everything quickly.

Add the eggs and vanilla.

Stir with the whisk again.

Put the flour through a sieve into the bowl. 

Stir to combine.

Assemble

Pour half of the brownie batter into your prepared tin and level off.

Spoon the caramel over the batter in large blobs, reserving a couple of spoonfuls (about 60g). 

Swirl with the handle of a spoon.

Top with the Mars Bar pieces.

Pour the remaining brownie batter on top and level off.

Drizzle with the remaining caramel.

Swirl a little with the handle end of a spoon.

Bake for approximately 30-35 minutes until a skewer pushed into the centre comes out with sticky crumbs (bear in mind you may hit Mars Bar, so test in 2-3 places).

Allow to cool in the tin, then chill overnight to make them easy to slice.

Slide onto a serving board and slice in 12 pieces (in a pattern of 3 by 4).

Pin this Mars Bar Brownies recipe

Pin this Mars Bar Brownies recipe

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