2 c. flour
1 c. salt
1 tbsp. alum
2 c. water
2 tbsp. oil
Food coloring

Mix dry ingredients. Boil water and oil. Combine liquid and dry ingredients with a mixer and then by hand. Food coloring can be added to the water mixture, of if you want many colors you can add the coloring when you mix it by hand (might want to wear gloves). This play dough lasts forever when stored in zip lock bags in the refrigerator.