Get out saucepan and put in eggs.
Cover eggs in water.
Boil. (Medium/High Heat)
The boiling eggs.
When eggs are done boiling immerse in cold water. (This will stop it from cooking.)
Peel eggs under warm water.
Put yolk, mayonnaise, salt, pepper and dry mustard in bowl and mix.
Put mixture into the egg halves.
Add paprika and parsley. (To preference.)