Peanut butter jelly cookies

Behold the wonder that is peanut butter and jelly in cookie form!

Recipe from Martha:

http://www.marthastewart.com/316916/peanut-butter-and-jelly-thumbprints

First blend the butter and peanut butter.

Add egg and vanilla. Then gradually add flour mixture

Roll dough into balls, then roll in sugar

Half way through baking you pull the cookies out and create the indentation that will hold the jelly. 

The recipe said to warm the jelly, but I just spooned it in and it was fine.