Pearl sugar ("sucre perlé" or "sucre en grains" in french) is used in Liège waffles, french chouquettes, buns...
I buy the Beghin Say Granulated Sugar for Chouquettes 350 g.
Where to buy it:
* I haven't found it yet in any shop in the UK
* I order it online @ https://www.europafoodxb.com/