GFCF Chocolate Thumbprint Cookies

I made these the other day. Don't they look delish? The original recipe is by Living Without (here). I added strawberry jam because a chocolate cookie with a completely chocolate center seemed like too much to me (I like chocolate as much as any other gal, but only a little at a time). And then I added a little sugar to roll the cookie dough in to make them pretty. You can roll them in