So many have asked, some have created solutions, here's my take on it. This could easily be done with simple pine painted or stained. We used cover panel since ours are behind glass doors.
What you need:
Rationell drawer fronts (to use the grey ends which fit into the drawer box)
1/2 inch wood to be ripped down (blue tape if you want to cut down cover panel)
Circular saw (table saw would be preferable for a straight cut)
Electric drill and 1/4" drill bit
Awl
straight blade or hand saw
screwdriver (electric is ok)