Hardboil the eggs and let cool.

Mix 1/2 cup very hot water with a small amount of the food coloring paste until the desired hue is reached. Let cool to room temperature.

Add 2 tablespoons white vinegar to strengthen the dye. Dip or immerse the eggs into the dye for the desired amount of time, using metal tongs to quickly and easy transfer the eggs. Dry the eggs in egg cups, empty egg cartons, or on slices of cardboard tubing.

Just remember - 2 tablespoons white vinegar to each 1/2 cup very hot water