Mix dry ingredients in skillet. Add water, stirring until thoroughly mixed.  Add oil last, then add food coloring. Heat slowly in pan (electric fry pan works great) stirring constantly. As mixture gets hot, it will thicken. Remove from heat when mixture is no longer shiny.

When the mixture is still warm but not hot to the touch, remove from the pan, and knead with hands to make it smooth. This dough will keep for long periods of time in an airtight container.