Fifteens

Fifteens are a type of tray bake from Ulster. The recipe's name derives from the fact that a set of fifteen buns is typically made with 15 digestive biscuits, 15 marshmallows and 15 glacé cherries, which are combined with condensed milk and desiccated coconut. The biscuits are crushed before being mixed in a bowl with chopped glacé cherries and miniature or chopped marshmallows. Condensed milk is then added as the binding ingredient. The mixture is then rolled into a log or sausage shape which is in turn rolled in the desiccated coconut and placed in a fridge to set. Once it has been in the fridge for a few hours the log is removed and cut into fifteen slices and served.

Source: Wikipedia