Once you have completely cooled your eggs, peel them and slice them in half lengthwise.
Remove the yolks and place in a bowl.
Combine all cooked yolks with mayonnaise, sugar, salt and pepper. Use a whisk or hand mixer…it helps to break up the yolk the best.
Combine 1 cup of water in a mug with 6-10 drops of food coloring and stir. The more food coloring you use, the deeper the color will be.
Place egg white halves in the mugs of colored water. You can color up to 6 egg whites at a time in the same mug- based on the size of your mug. Let egg whites soak in colored water for 2-5 minutes- based on the color that you are looking for.
Remove egg whites from mugs and rinse. I did this by pouring out the mug of colored water and rinsing under the faucet.
Pat dry egg whites with a paper towel. Place egg whites on serving tray.
Fill egg whites with egg yolk mixture. I like to make them look a little fancy so I use a piping bag and tip. A ziplock bag works really well too! Just cut off the end of the bag to create an opening for the egg yolk mixture to come out of.