The process is not very hard.

First you draw a cylinder (ex: diam 4mm and height 55mm)

you draw a line cutting the circle in the middle.

You do a boolean between cyclinder and line.

You draw line from the center at bottom to center at top of the cylinder

You make Deform/twist on your 2 parts of cyclinder using the middle line as axis of the twist and you use 1800 degrees for example.


Draw the Cane as a curve.

Last step is Deform Flow of your 2 parts of cylinder using middle line and the cane curve as source and target curves.
Check on the Stretch option to adapt your candy cane on the cane curve.