I remember having these as a child when my Grandparents used to buy them from Marks and Spencer. I used to think they were so exciting, partly because of the shiny blue foil they were wrapped in, but mainly because of the huge dome of marshmallow balancing on a yummy biscuit base. I added a small blob of jam to the centre of mine, just to add even more flavour and you could experiment with different fillings. I chose raspberry jam as I like the slight tang against the sweet