Zamode, I just finished Sarah's Linzer cookies. There are a few versions of them the beside traditional rasberry jam. They are from a 1979 Family Circle Magazine.They are really good too. Also, there is BC recipe that I tried from www.kitchencollectibles.com
. to get to the recipe just type Pam's Buttercream recipe and when the page comes up just look around and you will see it and you can get into their archives. For others that don't know about the site they have lots of things for cookie decorating.