Oreo Millionaires!

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Oreo Biscuit Base, Homemade Caramel and Chocolate Oreo Topping… Easy Oreo Millionaires!

So… honestly how long was it going to be until I made another Millionaires recipe? They’ve become ever increasingly popular on my blog, so I thought I would post an absolute banger. Yes, this isn’t going to be everyone’s tastes, because obviously its Oreos inside and out, but if you love Oreos? YES, you will adore it!

ANYWAY… Oreos are loved worldwide, and I utterly adore them. Some of the most popular recipes on my blog, in general, are Oreo related. My Oreo Drip Cake has been insanely popular since posting, and even my Oreo Cupcakes which is such an old recipe now! Basically, you all seem to love Oreos as much as I do.

This recipe is inspired heavily by my Malteser Millionaires and my Biscoff Millionaires – which are essentially both biscuit based Millionaires traybake as well. No, you can’t call this shortbread, and after being shot down by someone with too much time on their hands, this is my Oreo Millionaires TRAYBAKE.

Parts of this recipe are so incredibly simple that its hard to call it a recipe, but the caramel is the key part to this! The base is just blitzed up Oreo biscuits (With the insides left in – it seems to be a thing to remove the insides of the Oreo, but I feel like this is too much effort), with some melted Butter added in! Press it down into a tin and woo you are all done!

The Caramel is the part that people can struggle with. You can get some people who think they are being smart by using tinned Caramel (the type I use in my buttercreams and cheesecakes) but there is a reason that I don’t use that in this. If it really was that simple, I would do it myself. However, using tinned caramel is much sweeter, and it doesn’t set solid whatsoever so is a gloopy mess.

You really should make the caramel yourself – and it’s much easier than you think. You just have to make sure to get the temperature not too hot! If it’s too hot, you might get little-burnt bits running through the caramel, or it will burn, or split! I can’t state an exact temperature that you need to get the caramel too, as it doesn’t work quite like that – but take a look at a few of my videos and you’ll see the colour you want to achieve!

Make sure to stir the caramel constantly, and preferably with a spatula. If you use a spoon, it has a curved edge so won’t catch everything on the bottom of the pan. However, if you use a spatula, you successfully scrape everything off the edges and sides of the pan so that no burning can occur! Also, make sure not to use evaporated milk as they are very different things!

For the topping, all you have to do is melt your chocolate of choice (I used milk chocolate) and then sprinkle over some crushed or whole Oreos! I always like to use the theme of the bake (in this case Oreos) on the top of the bake so it’s more obvious as to what flavour it is! Luckily, Oreos are quite distinctive because of their colour so the topping decoration is optional!

You can use Hersheys Chocolate on top, which is Cookies ‘n Cream flavour, but this can work out quite expensive so I just use regular supermarket own chocolate. This also works wonderfully with Dark Chocolate, which makes it so delicious and basically a traybake version of my No-Bake Rolo Tart!

But honestly, a delicious Oreo Biscuit Base, homemade caramel, and Chocolate is the dream combination for me. If you don’t like sweet food, then this isn’t for you… but it is honestly, SO GOOD! x

5 from 5 votes
Oreo Millionaires!
Prep Time
10 mins
Cook Time
15 mins
Total Time
25 mins

Oreo Biscuit Base, Homemade Caramel and Chocolate Oreo Topping... Easy Oreo Millionaires!

Course: Traybakes
Cuisine: Millionaires Shortbread
Keyword: Millionaires, Oreos
Servings: 16 Pieces
Calories: 480 kcal
Author: Jane's Patisserie
Biscuit Base
  • 450 g Oreos
  • 100 g Unsalted Butter (melted)
  • 200 g Unsalted Butter
  • 3 tbsp Caster Sugar
  • 4 tbsp Golden Syrup
  • 397 g Condensed Milk (one tin)
  • 250 g Milk Chocolate
  • 100 g Oreos (chopped)
For the Biscuit Base
  1. In a food processor, add all the Oreos, and blitz to a fine crumb. 

  2. Add in the Melted Butter, and mix together. 

  3. Press into the bottom of a 9x9" Square lined Tin, and refrigerate for now!

For the Caramel
  1. In a large saucepan pour the Condensed milk, Butter, Sugar, and Golden Syrup and melt on a medium heat till the sugar has dissolved – stir frequently to stop anything from catching.

  2. Once the sugar has dissolved, turn the heat up high and let the mixture come to boiling point and boil for 5-7 minutes stirring constantly so that the mixture doesn’t catch. BE CAREFUL as the mixture is VERY hot and can burn you if it splashes back! 

  3. The mixture will be ready when it has changed to a slightly darker golden colour and has thickened to a soft fudge texture!

  4. Pour the caramel onto the Biscuit Base and leave to set for an hour in the fridge.

For the Topping
  1. Once the Caramel has set, melt the chocolate carefully, and pour over the Caramel. 

  2. Sprinkle over some crushed/chopped Oreos, and set again till solid!

  3. Once set, cut up into pieces and enjoy! 

Recipe Notes
  • You can use whatever chocolate you like on the top - I just preferred Milk Chocolate when I made it!
  • You don't need to move the insides of the Oreos, I just leave them in. 
  • These will last for 1 week+! If its hot, the fridge is better. 
  • If your caramel burns, or splits, the temperature was too hot when making it - next time try a lower temp!
Nutrition Facts
Oreo Millionaires!
Amount Per Serving
Calories 480 Calories from Fat 261
% Daily Value*
Fat 29g45%
Saturated Fat 16g100%
Cholesterol 48mg16%
Sodium 194mg8%
Potassium 214mg6%
Carbohydrates 53g18%
Fiber 1g4%
Sugar 42g47%
Protein 4g8%
Vitamin A 535IU11%
Vitamin C 0.7mg1%
Calcium 86mg9%
Iron 3.5mg19%
* Percent Daily Values are based on a 2000 calorie diet.


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  1. How many Oreos do you use? What is golden syrup! Can u put the recipe into cups for me? I’m not good with the metric measuring. I so want to make these.Thank you so much!

    1. I’m from the UK – the weight for the Oreos is there. And golden syrup is commonly found in the UK. I would suggest investing in a set of digital scales as they’re much more accurate than cups.

  2. 5 stars
    I LOVE this recipe, so delicious!
    I must ask how you cut these into neat squares…. i made such a mess with the set chocolate on top, like the knife wasn’t clean cutting through the chocolate neatly. Thank you in advance

    1. Yay! I am so glad! I genuinely just use a large (26cm) sharp knife! I have cut up alot of traybakes in my time, but the really very sharp knife does help, and the length is longer than the traybake so it’s all in one for each line!

  3. 5 stars
    OMG just made these at the kids request…Absolutely love them and so easy to make….Don’t think they will last long in this house ….thanks for the recipie xxx

  4. 5 stars
    We absolutely love all things Oreo and my daughter is mad for millionaire and brownies so will definitely be giving these and your triple chocolate brownies a go! I was wondering if you ever grease or line your pans for these bakes? I would prefer to get the whole thing out of the pan before I cut it so as not to spoil the pan or do you cut yours whilst still in the cake pan?

    1. 5 stars
      Thanks Jane, I must have missed the bit about lining! I’m just curious to the little warming gadget that you used with a saucepan to make your caramel? It looks neat! x

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