Mars Bar Slice Recipe

Indulge in this irresistible Mars Bar Slice recipe! Layers of melted Mars bars, crispy rice bubbles, and rich chocolate create a heavenly dessert that's perfect for any occasion. Easy to make and guaranteed to be a crowd-pleaser, this recipe is your new go-to for satisfying chocolate cravings.

Prep Time 20 mins
Cook Time 130 mins
Calories 2735.9 kcal
Protein 91g
Rating Be the first
Mars Bar Slice 57

Recipe Actions

Share this recipe:

Recipe Author

Forktionary editorial kitchen team

The Forktionary Kitchen Team

Adapted from Food.com, then tested & standardized by Forktionary.

Ingredients for Mars Bar Slice

Cook Smarter with Sous, Your Kitchen Companion

Missing an ingredient for this Mars Bar Slice? Need a perfect wine pairing or a healthy side dish idea? Don't guess—ask Sous! Your AI-powered sous-chef is ready to help you swap ingredients, adjust serving sizes, and discover flavor tips in seconds.

How to Make Mars Bar Slice

  1. Chop 200g Mars bars into small pieces. Place in a heatproof bowl with 100g butter and 1/4 cup golden syrup.
  2. Microwave on high for 1 ½ - 2 minutes, or until Mars bars are completely melted, stirring halfway through.
  3. Mix until the mixture is completely smooth and well combined.
  4. Stir in 5 cups (approx. 150g) Rice Bubbles cereal. Press the mixture firmly into a greased and foil-lined 20cm square cake tin.
  5. Refrigerate for at least 2 hours, or until completely firm.
  6. While the base is chilling, place 150g milk chocolate pieces (or your preferred chocolate) in a heatproof bowl.
  7. Microwave in 30-second intervals, stirring after each interval, until melted and smooth. Be careful not to overheat.
  8. Once the Mars Bar base is firm, pour the melted chocolate evenly over the top.
  9. Refrigerate for at least 1 hour, or until the chocolate is set.
  10. Remove from the refrigerator about 30 minutes before serving. Cut into squares using a warm knife for clean cuts.

Nutrition Information (Approximate per serving)

Sodium

64 g

Sugar

434g

Fat

578g

Carbs

85g

Recipe Categories (Choose a category and find related recipes!)

Frequently Asked Questions

How long does it take to make Mars Bar Slice?

Mars Bar Slice takes about 150 minutes from start to finish — roughly 20 minutes to prepare and 130 minutes to cook.

How many calories are in Mars Bar Slice?

Mars Bar Slice has approximately 2735.9 calories per serving, with about 91 g protein, 85 g carbohydrates and 317 g fat.

What ingredients do I need for Mars Bar Slice?

The key ingredients for Mars Bar Slice are Rice Bubbles, Mars Bars, Butter, Golden Syrup, Dark Cooking Chocolate. See the full list with measurements above.

Reviews

No reviews yet — be the first to share your thoughts on this recipe!

Write a Review