I found this recipe on A Small Tribe through Embrita Blogging and decided to give it a whirl!
I tried to make purple, but it does sort of look gray. I do think I did something wrong, perhaps not stirring constantly enough, because I did have some non-colored clumps, but overall I think it was very easy and fun. Heidi actually helped me by dumping all the dry ingredients into the pan and stirring :). Then she had fun and kept asking to play with it more throughout the day.
And of course, Steve got in on the action too :).