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Mars Bar Slice – A Sweet Nostalgic Treat

Decades Old – Still a Family Favourite

There’s something incredibly nostalgic about a good old Mars Bar Slice. It’s one of those no-bake treats that take you right back to childhood birthday parties and school lunchboxes. This version is simple, satisfying, and always a crowd-pleaser.

Made with just a handful of ingredients, Mars Bars, butter, golden syrup, Rice Bubbles, and chocolate, this slice comes together quickly and disappears just as fast. The gooey melted Mars Bars mixed with buttery golden syrup create the perfect caramel base to coat the Rice Bubbles, and when it’s topped with smooth, melted milk chocolate… well, let’s just say one piece is never enough!

Whether you’re whipping it up for a weekend treat, taking a plate to a gathering, or just craving something sweet and easy, this slice hits the mark every time.

Mars Bar Slice Recipe

Ingredients:

  • 3 cups of Rice Bubbles  
  • 2 Mars Bars  
  • 60g Butter  
  • 1 tbsp Golden Syrup  
  • 1 bag of milk cooking chocolate (approx. 200g)

Instructions:

  1. In a medium saucepan over low to medium heat, melt the Mars Bars, butter, and golden syrup together. Stir constantly until smooth and fully combined.  
  2. Remove from heat and stir in the Rice Bubbles until well coated.  
  3. Press the mixture firmly and evenly into a lined medium slice tray.  
  4. Melt the cooking chocolate (microwave or stovetop), then pour over the slice, spreading it evenly to cover the top.  
  5. Refrigerate until the chocolate is set, around 1 to 2 hours.  
  6. Once firm, slice into squares or rectangles and enjoy!  

Keep this one bookmarked – you’ll find yourself making it again and again. It’s especially great for getting the kids involved in the kitchen too (just be ready for sticky fingers!)

Mars Bar Slice 
Print

Mars Bar Slice 

Servings

14

servings
Prep time

10

minutes
Cooking time

3

minutes

There’s something incredibly nostalgic about a good old Mars Bar Slice. It’s one of those no-bake treats that take you right back to childhood birthday parties and school lunchboxes. This version is simple, satisfying, and always a crowd-pleaser.

Ingredients

  • 3 cups of Rice Bubbles  

  • 2 Mars Bars 

  • 60g Butter

  • 1 tbsp Golden Syrup  

  • 1 bag of milk cooking chocolate (approx. 200g)

Directions

  • In a medium saucepan over low to medium heat, melt the Mars Bars, butter, and golden syrup together. Stir constantly until smooth and fully combined
  • Remove from heat and stir in the Rice Bubbles until well coated.  
  • Press the mixture firmly and evenly into a lined medium slice tray.  
  • Melt the cooking chocolate (microwave or stovetop), then pour over the slice, spreading it evenly to cover the top.
  • Refrigerate until the chocolate is set, around 1–2 hours. 
  • Once firm, slice into squares or rectangles and enjoy!  

Notes

  • Keep this one bookmarked – you’ll find yourself making it again and again. It’s especially great for getting the kids involved in the kitchen too (just be ready for sticky fingers!)
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