This is lots of fun for kids to make and play with! My kids used to love it! Combine ingredients. Knead well. Add desired food coloring. Store in tight container.
Mix all together: 1 cup salt, 1 cup flour, 1 Tbsp. salad oil (veg.oil). Add water (a little at a time) and mix until it forms a dough like consistency. If too dry, add more water. Put a few drops of food coloring to get desired color. Store in an airtight container. Use like regular play dough.
Mix the white glue and food coloring together in a small bowl. Pour liquid cornstarch into a small second bowl. Slowly pour the glue mixture on top of the liquid cornstarch.
In a medium saucepan over medium heat, combine flour, cocoa powder, salt and cream of tartar. Add vegetable oil and boiling water and mix well. Cook, stirring frequently, until mixture forms a soft dough.