Jam thumb print cookies

For our wedding my grandad and Marci gave us a better homes and garden newlywed cook book. I hadn't looked at it in a little while and while trying to not make another variation of chocolate chip cookies I found these. Very simple ingredients that you'll probably have on hand.
Once you've chilled the dough and then made little balls, you dunk them in eggs whites and coat them in finely chopped walnuts. Or not, I made some without the walnuts and they're good too.
Put them on you're sheet and then stick your thumb in them! Kinda fulfills all those childhood desires of sticking your fingers into things you shouldn't.

Let them cool completely and then drop a little bit of jam in your thumb print. I had blackberry and peach.

Yummy!