Play dough

[user1470647613]

Hi
Does anyone have a good tried and tested recipe for salt free play dough for babies under 1? i.e. Something that is safe if they eat it!
Thanks
Emma

1 cup water, 1/2 cup salt, tablespoon veg oil, table spoon cream of tartar (preservative), food colouring, heat until warm, turn off heat and add one cup flour and stir vigorously. Knead a bit til smooth. Lasts up to 6 months in ziplock bag.

Oh tits just seen salt free!

TBH though you could omit the salt but the idea of it I think is it tastes so disgusting they don't eat it!