• Turn all your leftover Easter or Christmas chocolate into this wonderful no bake chocolate slice

Leftover Chocolate Slice

Is there such a thing as leftover chocolate, you may be asking yourself? Well, when you decorate cakes for chocoholics and you’re creating a new fudge, you find you have boxes and packets of various chocolates tumbling out of your pantry! If there is no such thing as uneaten chocolate in your world then maybe you may have a half can of condensed milk then, most likely from whipping up a batch of no churn ice cream?

If you are anything like me, using up odds and sods in the kitchen will satisfy your slightly odd compulsion to finish half open packets nicely. Not to mention that Easter time is just around the corner and my Leftover Chocolate Slice will help you rid your cupboards of unused chocolate egg shells and the choccies within, when your kids (or Hungry Hubby!) has eaten their fill, in the raw, as it were. Pin this image for your forthcoming hour of need, chocolate coated need…

Leftover Chocolate Slice-4

Just look at that chocolatey goodness. And it’s just a case of melting, stirring, pressing into a pan and leaving to set. Oh and bashing up some digestives but that’s always fun so we’ll allow one extra little step. This slice is made in about 10 minutes and only takes an hour in the fridge before you can dive in and start devouring it.

The texture is definitely a little fudgy thanks to the condensed milk and crushed biscuits. You can add whatever chocolate bars or sweets you have to hand but the combo I use here is always very well received. When I gave Hungry Hubby a batch to take to work so my army of taste testers could give me their verdict, I was utterly delighted that the batch of 50 barely lasted past mid-morning and they sent me a picture of the empty cake tin before the end of the working day!

Although I fear I’ve created a monster as this Leftover Chocolate Slice is so addictive, I fear I am going to have to source me a job lot of cheap chocolate to keep my hoard of taste testers satisfied 😉

5 from 1 vote
Leftover Chocolate Slice
A brilliant recipe to use up chocolate you may have from Christmas, Easter, birthdays you name it. A refrigerator style no-bake slice, a perfect sweet treat to help you use up leftover chocolates. Substitute the chocolate bars as you like.
: 3603 kcal
Author: Just Jo
  • 150 g digestive biscuits crushed
  • 200 g dark chocolate
  • 200 g condensed milk half a can
  • 30 g butter
  • 1 tsp vanilla extract
  • 35 g Maltesers*
  • 140 g Minstrels*
  • 5 Kit Kats* double finger bars
To top
  • 150 g milk chocolate
  • 20 g butter
  1. Don't worry about getting every single lump out of the Digestives but do break down any large pieces.
  2. Melt the dark chocolate, condensed milk and butter in a saucepan over low heat then stir in the vanilla.
  3. Transfer to a large bowl to hasten cooling then stir in the Digestive biscuit crumbs.
  4. You can crush your Maltesers if you like or leave them whole (I think it's fun to see if you get a chunk with a whole one in!) but do break up the Kit Kats as you add them to the bowl - I do this by hand and snap each bar into about 10 little chunks. Throw the Minstrels in whole.
  5. Mix well then press into an 8 inch square cake tin lined with greaseproof paper. Level it off and press down firmly but don't be worrying about making it perfectly flat.
  6. Melt the milk chocolate and butter in a saucepan over low heat and when molten and well mixed, pour over the slice and use a spatula or knife to spread it evenly. Pop in the fridge to set for at least an hour (the addition of butter means the slice doesn't bloom and stays shiny even when chilled).
  7. When set solid, slice into 7 by 7 rows giving you 49 little pieces all in all. Store in a cake tin or tupperware box - they will keep for a week if you can restrain yourself from devouring them all immediately!
Recipe Notes

* = Maltesers, Minstrels and Kit Kats are what I happened to have to hand when I created this recipe. As long as you keep the quantities approximately similar, you can use whatever you like or have in. Crunchie bars, Peanut Butter Cups, Mini Eggs, Smarties - you name it, you can use them!

Nutrition Facts
Leftover Chocolate Slice
Amount Per Serving
Calories 3603 Calories from Fat 1881
% Daily Value*
Total Fat 209g 322%
Saturated Fat 118g 590%
Cholesterol 181mg 60%
Sodium 1390mg 58%
Potassium 2809mg 80%
Total Carbohydrates 406g 135%
Dietary Fiber 34g 136%
Sugars 281g
Protein 48g 96%
Vitamin A 37.2%
Vitamin C 6.3%
Calcium 78.6%
Iron 188.4%
* Percent Daily Values are based on a 2000 calorie diet.

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  1. Christie 28th February 2016 at 10:43 pm - Reply

    You had me at digestive biscuits. We love them and luckily we can get them here in the States. We also always have a lot of leftover chocolate. Now I know a great way to use it up.

    • Just Jo 29th February 2016 at 10:49 am - Reply

      Graham crackers would be a fine sub for the Digestives if anyone is in the States and can’t find them Christie too, thanks for jogging my memory on that! Glad I’m not the only one who has chocolate coming out of my ears lol.

  2. Sarah 28th February 2016 at 10:54 pm - Reply

    Rarely is there chocolate leftover from any occasion in my house, haha, but next time there is I’m DEFINITELY making this!! Looks delish!

    • Just Jo 29th February 2016 at 10:49 am - Reply

      You can always buy some especially for this recipe Sarah 😉

  3. Sarah and Laura @ Wandercooks 28th February 2016 at 11:32 pm - Reply

    Leftover chocolate! :O Never! haha…but if there’s any excuse to go buy MORE chocolate, it would definitely be to create this slice. That looks delicious, and malteasers are one of our favourites!

    • Just Jo 29th February 2016 at 10:50 am - Reply

      Lol, it is a brilliant excuse to buy me choccie alright 😉

  4. Sara | Belly Rumbles 28th February 2016 at 11:47 pm - Reply

    There is very rarely left over chocolate at my place. Only if I hide it in the vegetable crisper, yes, sadly I need to do that at times 🙁 I think I will just need to go out and buy extra chocolate to make this slice, looks awesome.

    • Just Jo 29th February 2016 at 10:51 am - Reply

      Lol I hid a poussin in the veg crisper that I’d bought to surprise Hungry Hubby with last week and nope, he didn’t discover it! It’s the best hiding place ever 😉

  5. Sara 29th February 2016 at 12:57 am - Reply

    If there ever happens to be leftover chocolate in my house I am making this! It looks incredibly yummy!

    • Just Jo 29th February 2016 at 10:51 am - Reply

      Thank you Sara, it certainly is very moreish 😀

  6. Georgina 8th March 2016 at 4:25 pm - Reply

    Ooh Jo, these look absolutely delicious. Left over chocolate is very rare here, ’tis a good job indeed that I buy massive bags specifically for cooking/baking. I might just have to make a batch on Friday for my lovely team at work.

    • Just Jo 13th March 2016 at 2:10 pm - Reply

      George, I’m so sorry this is such a late reply – in my defence, you know I’ve been somewhat preoccupied with that pesky exam! I hope you enjoyed these if you made them.

  7. Camilla 4th October 2016 at 11:57 am - Reply

    Lush Jodie, my family and I would love this, all day, every day:-)

    • Just Jo 4th October 2016 at 1:24 pm - Reply

      Thank you Camilla – it does get greedy groans of pleasure from whomever I make it! xx

  8. jacqui bellefontaine 14th March 2017 at 9:23 pm - Reply

    No such thing as left over chocolate in my house ever! But this looks fab and worth buying your favourite chocolate treats to make from scratch if you are like me and don’t have left overs.

    • Just Jo 16th March 2017 at 9:13 pm - Reply

      Absolutely – stock up on those faves and get melting and stirring Jacqui!
      You gotta love a bit of no-bake action for your sweet treats every now and then 😀

  9. Lesley Eyre 15th April 2017 at 5:51 am - Reply

    Made this yesterday! I only had 3 kit-kats in my goodies box so I used 2 twix bars as a substitute which worked a treat. When cutting it up I decided 49 pieces looked too small so I divided it into 36 instead. This is really yummy and my Hubby agreed too!

    • Just Jo 16th April 2017 at 9:01 am - Reply

      Ooo Twixes were my Dad’s fave before he became coeliac, I bet they were a great addition to the slice! And aye, cut ‘m as big or as small as you like – I’m one of those people who feel disproportionately less guilty about two small pieces than one big one lol 😉

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