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I’m slowly but surely sharing all of our favourite family recipes with you and the latest is this Mars Bar Tray Bake or Mars Bar Slice. A super easy, no bake treat, it’s something the whole family love but such an indulgent treat that you could easily eat the whole thing!

How do you make a Mars Bar Slice?

To make this delicious recipe you just need four ingredients – Mars Bars, butter, Rice Krispies and milk chocolate. You don’t need branded Rice Krispies, any puffed rice cereal will do. You can also use any size Mars Bars as long as you end up with 250g worth! For the chocolate topping you can use milk chocolate bars or chocolate chips.

You also need a nice, sturdy baking tin. We use either a brownie pan or a square metal baking dish. The smaller the dish, the deeper the Mars Bar slice will be, the bigger, the thinner it will be. Our usual pan is an 8 inch square tin that works really well and makes around 16 good size Mars Bar squares when sliced.

Can you vary this recipe?

You can add Mars Bar chunks to the chocolate topping before putting in the fridge to set or add sprinkles or any other chocolate to the top. A lot of people also add golden syrup to the melted Mars Bars mixture to make it extra sweet, sticky and runny but we find it works really well with just Mars Bars and butter.

This is such a wonderful treat for pretty much any occasion – a buffet, a birthday party spread, a bake sale or even just when your friends are coming round for a cup of tea. It’s the sort of treat that no-one will be able to say no to. We’re planning a Mars Bar cake recipe next but for now this Mars Bar crispy cake is one of our favourite things to make and the most popular of our no bake recipes.

If you’re looking for other recipes to make, here’s our chocolate fudge tiffin, cherry bakewell loaf cake and carrot cake cupcakes recipes. You can see all our recipes to date here.

So here’s our super easy Mars Bar Tray Bake Recipe

Ingredients

250g Mars Bars – roughly 5 bars, chopped into bite size pieces
90g unsalted butter
115g Rice Krispies
300g milk chocolate – can be bars or chocolate chips

Recipe

Line a brownie pan or square baking dish with baking paper
Put the Mars Bar pieces and butter in a saucepan and melt over a low heat until well combined. Stir regularly.
The nougat pieces don’t melt fully so don’t worry if the final mix is slightly lumpy!
Remove from the heat and stir in the Rice Krispies until well coated
Pour the Mars Bar mixture into the prepared tin and press down with the back of a spoon, making sure the rice crispy cereal covers the whole dish.
Melt the milk chocolate in a glass bowl over a pan of boiling water.
When fully melted, pour the melted chocolate over the rice crispies and spread to form a nice even layer.
Put in the fridge to set for at least four hours but preferably overnight.
Remove from the fridge and leave to reach room temperature before cutting into squares. Enjoy!

If you’d like to pin or print this Mars Bar Traybake recipe for later you can do so at the bottom of the page. Happy baking!

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