Mars Bar Cake Recipe
62 Reviews
About our Mars Bar crispy cakes:
Try baking our Mars Bar cake recipe for a slice of nostalgia. Not only is this recipe delicious, but it’s also fun and simple to make, and a perfect activity for you and your children. The chewy, gooey cereal base is blended with melted Mars Bars and topped with rich milk chocolate and white chocolate swirls. Bliss. So, gather your baking tools, put on your apron, and let's create something indulgent with this ultimate Mars Bar cake recipe.
Can I melt Mars Bars in the microwave?
Yes, you can melt a Mars Bar in the microwave. We’d recommend you do this on the lowest power setting though, to avoid spoiling the chocolate. Put the Mars Bars in your microwave on a low setting, and check it every 30 seconds until it is melted and smooth.
Can I melt a Mars Bar on a hob?
If you don’t have a microwave, you can melt your Mars Bar in a small saucepan on the hob. Chop the Mars Bar into smaller chunks to speed up the melting process. Melt your chocolate on low heat and to check it often.
How to make sure your Mars Bar cakes are soft
If you haven’t melted and mixed your Mars Bars, syrup and butter enough, this can cause your final bake to turn out too hard and clumpy. When melting these three ingredients together, you can use a whisk as they begin to melt to get the mixture nice and smooth.
Substitutions and Variations
Conquered the Mars Bar Cake Recipe and looking for more cereal themed bake ideas? Check out our Chocolate Rice Krispie Cakes and Easter Nests for equally fun and delicious recipes.
Reasons to make our Mars Bar cakes:
⭐Easy recipe for kids to follow (with supervision!)
⭐Can be made ahead of time and kept in the fridge
⭐Oven-free recipe
Ingredients
- 100gButter (unsalted, softened)
- 4Mars Bar 40g size (chopped)
- 1 1/2 tbspSilver spoon golden syrup
- 150gRice krispies
- 350gMilk chocolate
- 50gWhite chocolate
Method
Step 1
Lightly grease and line a 20cm square baking tin with greaseproof paper.
Step 2
In a heatproof bowl, melt and mix the butter, golden syrup and 3 of the chopped Mars Bars on a low heat. You want the resulting melted mix to be as smooth as possible.
Ingredients for this step
- 100gButter (unsalted, softened)
- 4Mars Bar 40g size (chopped)
- 1 1/2 tbspSilver spoon golden syrup
Step 3
Add the Rice Krispies into the heatproof bowl and stir in the remaining chopped Mars Bar which hasn’t been melted.
Ingredients for this step
- 150gRice krispies
- 4Mars Bar 40g size (chopped)
Step 4
Pour the mixture into the baking tin and press down firmly (we used a potato masher for this to ensure there are no gaps and the top is nice and level).
Step 5
In another heatproof bowl, melt the milk chocolate, stirring until smooth, then pour over the top of the Krispie mixture.
Ingredients for this step
- 350gMilk chocolate
Step 6
Moving quickly before the milk chocolate sets, melt the white chocolate and drizzle in lines up and down the surface of the Mars Bar slice. Using a skewer, drag forward and back through the mixture to create a feathered effect.
Ingredients for this step
- 50gWhite chocolate
Step 7
Place the baking tin in the fridge to chill and set. Remove a little while before you plan to serve so that it is easier to cut into squares.