Irresistible Mars Bar Slice Recipe: A Sweet Symphony of Chocolate, Caramel, and Crunch

Mars Bar slice, a delightful confection that combines the lusciousness of chocolate, the gooeyness of caramel, and the crunch of crispy rice, is a timeless treat loved by both kids and adults alike. This easy-to-make recipe transforms the classic Mars Bar into a delectable slice that promises to satisfy even the most discerning sweet tooth. In this article, we’ll take you through the step-by-step process of creating this heavenly dessert that is sure to become a family favorite.


To embark on this culinary adventure, gather the following ingredients:

  • 4 Mars Bars
  • 3 cups of crispy rice cereal
  • 150g (5.3oz) unsalted butter
  • 200g (7oz) milk chocolate
  • 100g (3.5oz) dark chocolate
  • 2 tablespoons golden syrup
  • A pinch of salt


  1. Prepare the Base: Begin by greasing a square or rectangular baking dish and lining it with parchment paper, ensuring that the paper extends over the edges for easy removal later.
  2. Melt Mars Bars and Butter: Chop the Mars Bars and butter into small pieces to facilitate melting. Place them in a heatproof bowl over a pot of simmering water or use a microwave in short bursts. Stir until the mixture is smooth and well combined.
  3. Incorporate Crispy Rice: Add the crispy rice cereal to the melted Mars Bar and butter mixture. Gently fold the cereal into the mixture until it is evenly coated. Ensure that every crisp is enveloped in the gooey goodness of the Mars Bars.
  4. Press into the Baking Dish: Transfer the mixture into the prepared baking dish. Use a spatula or the back of a spoon to press it down firmly, creating an even layer. Place the dish in the refrigerator to set while you prepare the chocolate topping.
  5. Prepare the Chocolate Topping: In a clean bowl, combine the milk chocolate, dark chocolate, golden syrup, and a pinch of salt. Melt the mixture using the same double boiler method or in the microwave, stirring occasionally until it is smooth and glossy.
  6. Pour Chocolate Topping: Remove the baking dish from the refrigerator and pour the melted chocolate mixture over the crispy rice base. Use a spatula to spread it evenly, ensuring all corners are covered.
  7. Chill and Set: Place the dish back into the refrigerator and let it chill for at least 2-3 hours or until the chocolate topping has set. This step is crucial for achieving that perfect, firm texture.
  8. Cut into Slices: Once the Mars Bar slice is fully set, use the parchment paper overhang to lift it out of the baking dish. Place it on a cutting board and, using a sharp knife dipped in hot water for clean cuts, slice it into bars or squares of your desired size.
  9. Serve and Enjoy: Arrange the Mars Bar slices on a serving platter and watch as your creation disappears in no time. This sweet treat is perfect for gatherings, parties, or as an indulgent snack for those moments when you need a pick-me-up.

Tips and Variations:

  • Experiment with Toppings: While the classic chocolate topping is divine, feel free to experiment with variations. Sprinkle chopped nuts, shredded coconut, or even sea salt on top for an extra layer of flavor and texture.
  • Add a Twist with Different Mars Bars: Try using different variations of Mars Bars, such as caramel-filled or almond, to add a unique twist to your slice.
  • Go Dark or Milk: Adjust the chocolate topping to your preference by using all milk chocolate, all dark chocolate, or a combination of both. Dark chocolate adds a slightly bitter note that balances the sweetness of the Mars Bars.
  • Make it Kid-Friendly: Involve the little ones in the kitchen by letting them crush the crispy rice cereal or chop the Mars Bars (under adult supervision). This recipe is a great way to introduce children to the joys of cooking.


In the realm of irresistible desserts, the Mars Bar slice stands tall as a testament to the magical combination of chocolate, caramel, and crunch. With its straightforward preparation and heavenly taste, this recipe is a must-try for anyone with a sweet tooth. Whether you’re a seasoned home baker or a novice in the kitchen, creating this delectable treat will surely bring joy to your taste buds and those lucky enough to share in the indulgence. So, gather your ingredients, roll up your sleeves, and embark on a culinary journey that culminates in a slice of pure bliss.

Leave a Reply

Your email address will not be published. Required fields are marked *