Most places that sell the cure sell the coloriing. It comes in a bag that has a red paper surrounding a little tuperware type container that has the cure in it. It costs around $7.00. Make sure it says coloring on it not cure. Like he says it takes a little longer but it is worth the extra effort. They stay red way longer than other methods. I use latex gloves to stir the eggs around in the container so I can moniter the cure process first hand. If left in there to long the eggs will turn in to bbs. Also dry the eggs on cardboard. Newspaper ink can bleed into the eggs.
Good luck to ya.