Playdough recipe

This is a big recipe that makes about three cups of playdough.

2 cups flour
1/2 cup salt
4 tsp cream of tartar
2 cups warm water
2 tsp oil
Food colouring

1. Mix together the dry ingredients (I mixed them straight in the pot they would be cooked in).
2. Slowly add 2 cups of warm water while stirring to avoid clumps.
3. Mix in 2 tsp oil (We used lime oil. I've also heard great things about mint oil. Or you can use a more neutral oil)
4. Stir in your food colouring. I found ten drops to be a good starting place. Keep in mind that the playdough will darken up a bit as it cooks.
5. Cook over medium-low heat while stirring. Make sure you're scraping away the stuff that clumps up at the bottom of the pan. The playdough will thicken and you will see less and less of the whiter liquid that you started with. You can take the playdough out of the pan before all of the white is gone, but I would wait until you get a large glob that all holds together.
6. Use a spoon or spatula to get it out of the pot and onto a surface (we used the granite countertops).
7. Knead until smooth and uniform. It will be hot, but I found that I was able to knead it pretty much straight out of the pot, and my daughter was able to knead it soon after.
8. Put it into an airtight container. You may want to let it cool first a bit; otherwise you'll get condensation in the container.