This is an adaptation of a recipe posted by Lynne Valeriote on the foodtv.ca web site. My son loves this recipe and I make it weekly and store it in containers in individual serving sizes in the freezer. You can make it hotter or tamer by adjusting the amount of chipotles.
I found this recipe on a website called squiglysplayhouse.com while I was trying to help my kids with a school project. We were trying to create a medieval church. It is a simple recipe that takes very little time and costs a lot less to make than buying modelling clay.