This tip is well worth mentioning on this post again, in case you do not read the comments under the posts.
Anonymous wrote this advise:
new comment on your post "Papillons, Phalenes: Picky Eaters":
Also, there are freeze dried beef and chicken liver treats that don't have any additives in them; just the liver and some have apples or pumpkin. They crumble easily so I pound a few into dust with a rolling pin and put in an empty seasoning container with wide holes in the cap. A sprinkle over the food makes it desirable.
Thank you Ramirez 101