Hey guys,

Was looking for some recipes for playdough on the net - a lot of them said to put something called "Alum" in it. Anyone know 1) what this is, and 2) if it's necessary... (and if yes, where do i buy it from?)

Or do you have any good recipes to share... DS seems to like eating playdough (I remember doing the same thing at kinder, i think because they said not to eat it, so of course i had to try it), so prefer something not too salty.