In a large mixing bowl, stir together the flour, salt, and cream of tartar.
Add the oil.
Heat the water to almost boiling.
Add the water to the bowl and stir until a dough ball forms. If the dough seems very sticky, more like a paste than a dough, then add up to ¼ cup more flour.
Once the dough is cool enough to handle, divide into 4-6 balls.
Add food coloring to each ball.
Gently knead the food coloring into the dough. As you mix, the color will distribute throughout the dough.