I used my container gardening method https://www.instructables.com/id/Successful-Container-Gardening/
to get started, but this is a matter of choice and is not necessary with Hens and Chicks.
Start with a little garden bark in the bottom of the planter and a toilet paper core.
Add some Garden Charcoal.
Place dirt around the tube filling your pot to around one inch from the top.
Fill the tube with more garden bark and then add some gravel on top to aid in keeping the plant off of the soil to help avoid rotting.