Mom makes the best pies.
Cremated remains (or cremains, the funeral industry no longer uses the therm “ashes”) are small chips of bone some nearly as large as a small fingernail. Some crematories will further grind up the cremains so they are appox 1/8” size pieces of bone.
The Hollywood movies you see with someone dumping cremains off a cliff and they blow back all over the people, are false and are done for comedy.
It would not be pleasant attempting to eat food with cremains sprinkled on them. It might be tough on your teeth.
Winner!!!