Crushed krack jack biscuit
The biscuits are crushed either with hand or by placing them in a cloth and pounding them with a hammer for a few seconds. The latter procedure tends to impart a finer crushed product than the former.
Powdered krack jack biscuit
You may powder the biscuits in a dry grinder or by placing them between a cloth or plastic sheet and pounding them with a hammer. They may be powdered fine or coarsely as per the recipe requirements.