This recipe has been a favorite in our home for years now. My children's kindergarten teacher gave this to me, and we haven't bought any store bought since. It is so soft!! And it keeps really well! It is super easy to make as well. My 3 year old son loves to use it outside on the patio to make tractor and little truck tire tracks in with his toy as you can see from the picture..lol. He had to take a picture of his work. :-)
1Cook over medium heat, stirring 3-5 minutes, or until stiff. When stiff, turn out onto a floured plate and let cool for a few minutes.
When cool enough to the touch, knead until nice and soft. Store in an air tight container.
2If it dries out a bit after some play, I put it in the container with a little bit of water and leave overnight. In the morning, it is soft again.