Play Dough - cooking recipe

Ingredients

5 c. flour
2 Tbsp. powdered alum
1 c. salt
4 Tbsp. cooking oil
3 c. boiling water
food coloring
food extract (optional; gives it a scent)

Preparation

In a very large bowl, mix together the first 3 ingredients. Make a depression in the center of this mixture and add the oil. Boil the water.
To this, add several drops of food coloring and scented extract.
Pour this into the mixture slowly and stir together with a long spoon.
When the mixture has cooled a little, turn it onto a table and knead it until smooth.
Keep play dough fresh by storing it in an airtight container or large plastic bag sealed shut.