kinda palm off the REALLY excess brittle skin

chop off the twisty spike, giving a flat end to...

sit the onion down and chop in half

easily peel skin from both halves in one fell swoop

cut slits from hairy root to [now flat] end

go perpendicular and slice into flattened end 3 or so times to hairy root

then do the cheffy choppy choppy chop from flat end to hairy root, spunking out perfect little cubes every time.

^^^Like that or you live in a fucking tree