In the great food wars of the world (pav, hummus etc), none are greater than biscuit crumb vs crushed weetbix in rum balls.
Insert Multiblade. Add biscuits or Weetbix. QuickPulse until fairly fine consistency.
Add 1/3 cup coconut and all other ingredients. Speed 3 until combined.
Roll into balls s little smaller than golf balls. This is easier with wet hands. Roll in reserved coconut. Refrigerate for 15 min to firm up.