Playdough Recipe

today, i made a new batch of playdough with the girls. our old batch was getting a little icky... i've used a couple of different recipes, but they all seem about the same. i like this one - i think the alum gives it a better texture that cream of tartar.

1 cup boiling water
1/2 cup salt
1 cup flour
1 tbsp alum
1 tbsp vegetable oil
food colouring

add salt to boiling water. in a medium bowl, mix next 3 ingredients together, then add salted water. when the dough is cool enough to handle comfortably, knead until smooth, adding more flour if necessary. divide the dough and knead in food colouring. store in airtight containers.