This recipe is from mommyfootprint and it's as good as any.
Play Dough Recipe:
1 cup white flour
1/2 cup salt
2 tablespoon cream of tartar (find it in the spice section)
1 tablespoon oil
1 cup water
Mix first 4 ingredients in a pan.
Add water and mix well. Cook over medium heat, stirring constantly, for 3 – 5 minutes.
Dough will become difficult to stir and form a “clump”. Remove from stove and knead for 5 minutes.
Add food coloring during kneading process. I added mine seperately in bowls because we wanted to have some variety. Here we are getting ready to make green, pink, and blue.
Kneed it up.
Play dough will keep for a long time stored in a covered plastic container or plastic sandwich bag. Here's mine in some colourful tupperware. Yay!
Kids like to play with cookie cutters, plastic cutlery and even little plastic (washable) toys when they dig into their dough.
Have fun and be creative!