Cooked Play Clay

1 cup all-purpose flour
1 cup water
2 teaspoons cream of tartar
1/4 cup salt
1 tablespoon vegetable oil
Food coloring
Wax paper

In a medium-size saucepan, mix all ingredients. Cook over medium heat, stirring constantly. When dough becomes harder to stir and gathers on spoon (about 5 minutes), dump onto wax paper, cool until able to handle and knead 10 to 15 times until smooth. Store in sealed container; keeps up to two weeks.