I have used a wooden palette almost exclusively for years. I have two, and they both have the most magnificent patina and sheen one could ever imagine, and that has resulted from following the advice of someone who merely recommended using it. I squeeze out paint onto it, I use it for mixing, and when my session is done, I carefully scrape the surface with a Bob Ross Painting knife, and then, using a paper towel, I just buff off the remainder of paint.
I have not ever "cured" a wooden palette, as long as I've been painting. I just use it, and I buff the paint off with a dry paper towel after each use.
Check my blog for the appearance of these two palettes.