Cut the pastry. without rolling into individual rectangles. Glaze with egg. Bake at 400*F until
puffed and crisp. Split open like an English muffin. Put the base on a plate and top with whatever you'd like, maybe the cherries with their juices reduced and sweetened. Some pasty cream or custard underneath the cherries would be nice. Top with whipped cream or creme fraiche and then the top of the pastry, askew.
I've done this with caramlized pears and pastry cream, strawberries with whipped cream, and asparagus with hollandaise. I've never tried it with cherries, but I might just have to.