Line a 9x9inch square tray with parchment paper and leave to the side
In a medium sized pan, add your small mars bar chunks, mini marshmallows and unsalted butter
Heat on a low heat, stirring frequently until the mixture has melted. At first it may look lumpy but after a while and a bit of beating it'll be smooth
Pour your Rice Krispies/Coco Pops in to a large bowl then pour the smooth melted mixture on top
Mix together until all of the Rice Krispies are covered evenly- this can take a bit of welly but its worth it!
Press down into your tray evenly and leave to set - this can take 3-4 hours. The mixture is very sticky so you may want to use gloves or the back of a spatula!
Once set, cut the pieces into squares, drizzle over some melted white chocolate and sprinkle with little chocolatey treats
This is a delicious treat that you can make with your kids - I like using mars bars, as they were a favourite treat of mine when I was little, but if you don't like them or can't get them then use 250g mini marshmallows, and 100g chocolate chips!
These last 2-3days in an airtight container!
You can make them into individual crispy cakes just as easily if you prefer!