Pearl sugar is mostly used on top of buns (or pulla) and other kinds of pastry in both Sweden and Finland, and probably in other Nordic countries also, but I'm not so sure about that. Pulla looks like this when it's taken from the oven:

http://www.juvankartano.fi/images/pulla.jpg

I can send you the recipe, if you want it, along with other pastry made from the same dough, where you can use your pearl sugar .