Whisk together flour, cream of tartar, salt, apple pie spice, cinnamon, and nutmeg until well combined.
Heat water to near boiling in the microwave, stir it into flour until well combined.
Add vanilla, stir, then flip out onto a floured surface, allow to cool until comfortable to the touch and knead until soft and smooth.
If you wish to add color you can do so at this point 3-4 drops of food coloring at a time. I wanted to offer the kids all the apple colors so I divided my dough into thirds and colored it red, yellow, and green- to keep my hands from becoming stained I mixed each color in a plastic bag.
Once completely cooled you can store your play dough in an airtight container if it becomes dry simply add a bit more oil to refresh it.