Cut off the bottom. Cut in half. Peel. Cut diagonal slices without separating from the root end. Both halves should still be intact, and the only exposed cut is where you cut off the end. Now every slice from the end will make a set of chopped pieces.
This is about making all the chunks the same size.
It’d be more useful to tell me the lowest possible number of cuts.
That’d be one. But you’re left with two halves of an onion 😃
the lowest possible number of cuts for what?
Dicing an onion
What counts as diced though?
Being cut into approximately die-like pieces.
Is half-sphere close enough to die shape?
Cut off the bottom. Cut in half. Peel. Cut diagonal slices without separating from the root end. Both halves should still be intact, and the only exposed cut is where you cut off the end. Now every slice from the end will make a set of chopped pieces.