Chocolate Surprise Slice

Posted by in Chocolate Recipes on January 12 2010 | Leave A Comment
Chocolate Surprise Slice

Also known as the Clinker Slice in Australia – I stumbled across this recipe when a wonderful co-worker at my “day-job” (hi Sharon!) brought some in to share Christmas week. Extremely easy, moreish and versatile recipe – one which calls for Clinkers (which appear to be a very Aussie or New Zealand thing) – but are easily substituted for Maltesers, Reese’s Peanut Butter Sticks, Chomp, Peppermint Crisp or any other chocolate-coated crunchy confectionary.


  • 180g of chocolate-coated crunchy confectionary (such as Clinkers or Maltesers)
  • 250g of plain, dry vanilla biscuits (Malt o Milk for the Aussies)
  • 200g sweetened condensed milk
  • 125g unsalted butter
  • 250g milk chocolate


Line a 17cm by 27cm tray.

Crush the confectionary and the biscuits in a food processor – they should look like crumbs with a few chunky bits mixed in.

Heat the milk and butter in a small saucepan over a low heat until the butter melts and the mixture combines.


In a large mixing bowl place the crumb mix and then add the milk mix. Mix until well combined – like a cookie dough consistency.

Spread the slice mix into the tray and then place into fridge to set.

Melt the milk chocolate and then pour evenly over the slice. Once the chocolate has set, cut into portions – ready to eat!

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Comments On This Post

  1. Ooooh….that looks absolutely gorgeous. I love the crunch and the condensed milk….have to be very delicious….mmmm. Thanks for sharing.

  2. Just by looking at the picture, I think it tastes good and the good about is that it is crunchy in the middle..

  3. It does look addictive (moreish)! Will save this for next year’s Christmas baking.

  4. BooBoo

    What are dry vanilla biscuits and where do you find them?

  5. What country are you in BooBoo?

  6. The thin layer of Chocolate in the first photo reminder me of the Nanaimo bars we can get Canada.

  7. abz


  8. Charlene

    I tried this one and to me it tasted exactly like “Twix” :o) Next time I will try adding some coconut and instead of milk chocolate I will try dark chocolate. I like experimenting. Thank you for the recipe!

  9. Charlotte Meehan

    This looks really yummy I will defiently try it.

  10. Thanks for sharing this I will have to try with dark chocolate as we are huge dark choccy fans in our house.

  11. Ally

    How do you get your chocolate so smooth and flat?????

    • Ben Dillon

      I use good quality cooking/baking chocolate. Cadbury is always thicker which doesn’t work as well. Once you smooth chocolate over your slice tap the tray on the bench a few times to remove air bubbles and create an even finish 🙂

  12. Looks yummy, thanks for the recepie I am going to try this at home and will post pictures soon.

  13. Laine R

    Couldn’t resist trying this. It lasted two hours in this house! The 2nd time I made it, I used dark choc +added a good pinch chilli powder to the melted butter. Oh! Wicked

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