Take the knobs and/or handles off the cabinets, using a screw gun.
Measure the cabinets with a tape measure and transfer those measurements to panels of wainscoting, using a pencil to draw cut lines.
Put on eye protection and cut the wainscoting along the drawn cut lines with a circular saw. Cut the wainscoting a few inches shorter than the vertical cabinet measurements to accommodate the cap molding.
Sand the edges smooth with 100-grit sandpaper, then blow off the wainscoting with compressed air to remove the sawdust.
Open a tube of panel adhesive and spread the adhesive across the back of the wainscoting with a caulk gun in a zig-zag fashion.
Fit the wainscoting over the cabinet and fasten it in place with a nail gun, using paneling nails. Measure and cut some cap molding to fit over the top of the wainscoting, and fasten it to the cabinet with adhesive and nails.
Reattach the cabinet hardware: fasten the knobs by hand or with pliers; fasten handles over the wainscoting with screws and a screw gun.