Play Dough - cooking recipe

Ingredients

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

Preparation

In a saucepan, heat water to boiling.
Stir in all at once the oil, salt, alum and flour.
Stir until it forms a ball.
Cool a bit and knead until it's smooth.
Add food coloring and/or flavoring, if desired.
Keeps for weeks when stored in a tightly covered container.