Giant Mars Bar Crackle Cake Recipe – Australian Special
Giant Mars Bar Crackle Cake is the ultimate indulgent treat—a nostalgic mash-up of rice bubble crackles and gooey Mars bars, all transformed into a rich, chocolatey no-bake cake. Perfect for birthdays, special occasions, or just treating your sweet tooth, this cake delivers layers of caramel, chocolate, and crispy goodness in every bite. Easy to make and sure to wow a crowd, it’s a dessert that brings the fun with minimal effort.
- Prep Time20 min
- Cook Time2 hr
- Total Time2 hr 20 min
Giant Mars Bar Crackle Cake Ingredients:
- 6 full-sized Mars Bars, chopped
- 2 tablespoons golden syrup (or light corn syrup)
- 90g (about 6 tablespoons) unsalted butter
- 3 cups Rice Bubbles (Rice Krispies)
- 200g milk chocolate, chopped
- 1 tablespoon vegetable oil (for a glossy finish)
Prepare the Tin:
Grease and line a round 20cm (8-inch) springform cake tin with baking paper.
Make the Mars Mixture:
In a saucepan over low heat, combine chopped Mars Bars, butter, and golden syrup.
Stir continuously until the mixture is smooth and fully melted (chunks of nougat may remain, which is fine).
Remove from heat and cool slightly.
Mix with Rice Bubbles:
In a large mixing bowl, pour the warm Mars mixture over the Rice Bubbles.
Mix thoroughly with a spatula until all the cereal is coated.
Form the Cake:
Spoon the mixture into the prepared tin.
Press down firmly with the back of a spoon or spatula to compact the mixture.
Chill in the fridge for 1 hour or until firm.
Top with Chocolate:
Melt milk chocolate with vegetable oil in a heatproof bowl over simmering water or in the microwave in 30-second bursts.
Pour the melted chocolate over the set crackle cake, spreading it evenly.
Chill for another hour, or until the chocolate is set.
Serve:
Remove the cake from the tin and slice into wedges. Serve chilled or at room temperature for maximum gooey-crunchy contrast. Great with a scoop of ice cream or a glass of milk.
Recipe Notes :
Mars Bars : Full-sized Mars bars work best; mini bars may alter the ratio.
Substitutions : You can use Milky Way or Snickers for variations.
Cereal Crunch : Don’t over-stir or the Rice Bubbles may go soggy—work quickly.
Storage : Store in an airtight container in the fridge for up to 5 days.
Serving Tip : For cleaner slices, dip your knife in hot water before cutting.
