Chocolate Play-do

I found this recipe for chocolate play- do HERE; at Just For Fun.  It's not edible, but smells oh so yummy! I actually tasted it while I was making it; it looked like cake mix and I couldn't resist. DONT taste it! It's gross. How could something with so much chocolate, taste so bad?! Well, it has provided ALL three kids hours of fun today. 

1 1/4 cups flour

1/2 cup cocoa powder

1/2 cup salt

1/2 Tablespoon cream of Tartar

1/2 Tablespoon oil

1 1/2 cups water

Mix dry ingredients in a medium size saucepan. Add wet ingredients and stir together over low heat until a ball of dough forms. Remove playdough from the saucepan and knead by hand until dough is smooth and evenly colored. Store in an airtight container in the refrigerator until chilled a little bit.