This is the one we chose.
2 cups of plain flour
2 cups of coloured water
1 Tbsp. of cooking oil
1 tsp. cream of tartar (What?)
1 cup of salt
Place all of the ingredients in a medium size or large pan. Cook slowly on medium-high and stir it until the playdough thickens. Once the playdough thickens remove from heat and kneed by hand until thoroughly mixed and dry to touch.
Keeps best in the fridge in plastic containers. This is similar to the traditional playdough recipe.
This recipe takes less than 10 minutes. (depending on the number of kids "helping" :-)