This is an incredible version of the old classic we've all tried at some point. You can use one type of mushroom or a mixture, but you will need ones which have a good cap to hold the ricotta filling. Small Portobello or field mushrooms will work well. You can serve this as a starter or as little antipasti munchies.
Made in North Yorkshire and available as a kit, apparently. Simple but sweet. This is the basic type I've made before. Using a cookie cutter for the windows always looks nice, but I'm no longer tempted to melt boiled sweets for 'glass' as they slowly stickyfy and melt on display.