For those moments when you've run out...
1 cup flour
1 cup water
1/4 cup salt
2 tsp. cream of tartar
1 Tbls. vegetable oil
food coloring (I used 4 drops)
Just dump all the ingredients into your pot and give them a good stir. Enlist some small help if possible – they will think you are magic.
Put your pot on the stove and cook over medium heat, stirring constantly, until it forms into a ball.
As soon as it joins into one big glob, take it off the heat and dump it onto your counter or some wax paper. Wait for it to cool, then knead it a few times until it is nice and soft.