You stripped it down? ***Did you use a chemical stripper on the top cutting surface????
You definitely should not use any stripper on the cutting surface. You are to simply scrape it clean with a sharp edged blade, then apply mineral oil on the cutting surface. If the cutting surface has been "abused", such that there are gouges, deep scrapes/cuts, etc., from long term use, then you sand it smooth, before applying the mineral oil.
As for as the sides, simply waxing it, with bees wax or parafin and buffing, really well, is all that's needed. You don't really need a typical finish coat on the sides.... and definitely no typical finish coat on the top. If a finish coat is desireable for the sides, I would recommend shellac, more so than anything else.
***If you have used a chemical stripper on the top cutting surface, do whatever is necessary to get any and all stripper residue off the cutting surface, before applying the mineral oil.
***Stripped it down... in your shop!!! What kind of shop do you have and what kind of experience does "this shop" have, for you to be doing a job on a piece that, apparently, you seem to have no clue about working on? I would expect any reasonable shop to know, at least, some basics about butcher blocks, and that "finishing" butcher blocks is not the same as "finishing" a typical piece of household furniture. You should have done a little research, about butcher blocks, before you engaged into a stripping procedure to begin with, if you have, in fact, used a chemical stripper on the top. Since you've asked about a continuing procedure/schedule, I assume you jumped into this project without preliminary basic knowledge, as well.
All is not lost or destroyed, though. You haven't ruined the butcher block. It's simply a good lessen to be learned. If you have used a chemical stripper on the top cutting surface, make sure it is completely cleaned of any stripper residue, before proceeding.