Filling doughnuts

Filled doughnuts, such as jelly doughnuts and cream-filled doughnuts, are made from disc-shaped doughnuts without holes. After frying and cooling, the doughnut is filled through a small opening cut in its side, using a piping bag or a filling machine.

In doughnut manufacturing, these hole-free doughnuts go to a machine that injects two doughnuts at a time with the desired, pre-measured filling. Bakeries do the same by hand with a pastry bag and a long tip.

Common fillings are fruit jam, pastry cream, whipped cream, and chocolate cream. The doughnut is rolled in sugar or glazed after filling, which also hides the entry point. A Berliner is a filled doughnut that can be filled before or after frying.