Play Dough - cooking recipe

Ingredients

3 c. flour
6 Tbsp. powdered alum
1 1/2 c. salt
3 c. water
2 Tbsp. vegetable oil

Preparation

Mix flour, powdered alum and salt.
Add water and vegetable oil.
Cook over low heat, stirring constantly until mixture thickens.
Knead, add food colorings.