Mmmm ... peanut butter

Yesterday I cooked up another batch of peanut butter cookies.  Used my bone shaped cookie cutter which means they look great but take forever to cut out.  Cooked them at a higher temperature (190C) for longer (30mins) and kept them in the oven for over 12 hours to dry out.  Seems to have done the trick as they've turned out really hard and crunchy.  Benji loves, loves, loves them but then again I could put peanut butter on cardboard and he'd wolf it down.