These biscuits pop up all over the place. They seem to be a staple of every bakery and supermarket, in the latter sold in packs of four.
Reading a few online recipes, the sweetie on top seems to be a modern replacement for a glacÃ© cherry. The icing tasted like a simple water icing, the biscuit somewhere between shortbread and shortcrust pastry in texture and taste. The jam was a standard “red” flavour, which could have been raspberry, strawberry or a mix of multiple fruits most likely.
I thought it was fine, but don’t feel any particular desire to eat another. However if someone was passing with a plate and offered me one, I’d probably scoff it down.