Nib sugar (also pearl sugar and hail sugar) is a product of refined white sugar. The sugar is very coarse, hard, opaque white, and does not melt at temperatures typically used for baking. The product usually is made by crushing blocks of white sugar, then sifting to obtain fragments of a given diameter. The sugar may also be made in an extrusion process.
In Nordic countries, pärlsocker is used extensively to decorate various pastries and confections, cookies, especially on top of plain Swedish bulle or Finnish pulla cakes, muffins and buns, such as kanelbullar (cinnamon buns) and chokladbollar.
In Germany it is known as Hagelzucker and traditionally used on Christmas cookies and cinnamon buns.
In France, it is often used on chouquettes.
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