This delicious slice combines the crunch of Weet-Bix and the sweetness of marshmallows, and is so easy to make with basic ingredients. It’s a perfect afternoon tea treat and is sure to be a hit with the grandkids – you can even add some sprinkles on top for their benefit. Store the slice in an airtight container in the fridge so the marshmallow filling stays springy and you can enjoy it with a cuppa all week.