Play Dough - cooking recipe

Ingredients

2 c. water
1/2 c. salt
2 c. flour
2 Tbsp. cooking oil
1 drop food coloring or mix for different colors
2 Tbsp. alum

Preparation

Bring to a boil the water, salt and food coloring.
Remove from heat and add flour, alum and cooking oil.
Mix; let cool. Knead after dough has cooled.