Here's my playdough recipe:
1 cup flour
1/2 cup salt
2 tsp. cream of tartar
1 cup water
...2 Tbsp. oil
1 tsp. food coloring
Combine  flour, salt and cream of tartar in a large saucepan.  Gradually stir in  1 cup water mixed with oil and food coloring.  Cook over medium to high  heat, stirring constantly until a ball forms.  Remove from heat, cool  and knead until smooth on wax paper.  Store in airtight container.
It's  a really weird consistency until the chemical reaction happens to form  the playdough so it may seem like it's not working, but just keep  stirring.  Have fun!
So I keep loosing this recipe, because it is saved on Facebook, so I thought I would post it here.  Enjoy!