1/2 c. salt
2 tbsp. oil
1 c. flour
1 tsp. cream of tartar
1 c. colored water

Mix all dry ingredients together in a deep saucepan. Add oil and colored water. Cook on medium heat for 2 to 3 minutes. Mixture will become thick as it cooks. After it forms a dough, remove from the pan and knead it with your hands until it becomes smooth. This is very safe and non-toxic. Store play dough in a Ziploc bag.