10 hard boiled eggs
About 1/2 cup mayonnaise
Put the eggs in a pot and cover with water.
Bring to a boil, turn down the heat to low, cover and simmer for 15 minutes.
After 15 minutes, cool the eggs with running cold water.
Peel the eggs.
Then cut them in half.
Put the yolks in a separate bowl.
Next, you'll need some food coloring. Make the colors just as you would easter egg dye. A teaspoonful of cider vinegar in each glass helps.
I used about 3 drops of food coloring in each glass. Take the eggs out when they're a pretty pastel color. Drain them on a paper towel.
Mash the yolks with a fork. When they're uniformly crumbly, add about a 1/2 cup mayonnaise. Scoop from your measurement and add half at a time. Make it as creamy as you like. When it's nice and creamy, you can add any extras-: mustard, minced chives, freshly ground pepper, bacon bits, etc. You don't need to add salt, the yolk is salty itself.
Time to fill the eggs! Put a little bit of the yolk mixture in each egg, so you don't run out, then go back and add a little more on top. Enjoy your beautiful plate of colored deviled eggs!