When hard boiled eggs cool enough to handle, PEEL; SLICE in half.
SCOOP yolks into a bowl; MASH yolks with a fork.
ADD mayonnaise, vinegar, salt, pepper and mustard to taste; STIR with fork until smooth.
REFILL egg white halves with mixture.
Sprinkle tops of eggs with paprika before serving.
To hard boil eggs: BRING eggs to boil starting with cold water to cover; when eggs begin to boil, reduct heat to just above a simmer, PUT on lid and cook for 20 minutes. DRAIN eggs and cover with cold water and ice cubes to cool quickly (makes them easier to peel).
Per Serving (excluding unknown items): 177 Calories; 15g Fat (77.0% calories from fat); 10g Protein; 1g Carbohydrate; trace Dietary Fiber; 321mg Cholesterol; 209mg Sodium. Exchanges: 0 Grain(Starch); 1 Lean Meat; 1 1/2 Fat; 0 Other Carbohydrates.