I too have been making these little gems (I call them Jammers) for many, many years, things to Debbie Fields. Two things I ensure I do is 1) don't skimp on the jam/jelly and 2) dust with icing sugar when cookies are cooled. They are always requested at Christmas time. They freeze well too. Just make sure you layer them with waxed or parchment paper so the jam doesn't stick.
I make this recipe all the time + I love it! So easy + turn out beautiful.