To make homemade play dough:

Mix:

2 cups flour

1 cup salt

2 Tablespoons vegetable oil

2 Tablespoons cream of tartar

Add:

2 cups of very HOT water (almost boiling)

Food coloring

Mix until you get a good consistency. There may be some flour left in the bowl. If it is too runny, add some flour. If it is too dry, add a little water.

After it cools, your kids can play with it.

Store in an airtight bag or container, and it will stay good for up to a few weeks, depending on how frequently you play with it.