Step 1

Place the cooked and drained macaroni in large bowl along with the green olives.

Step 2

Chop eggs into small pieces and mince the onion. Add to the macaroni.

Step 3

In a small bowl, combine the mayonnaise, mustard, and vinegar. Stir well and pour over the macaroni. Stir well to coat.

Step 4

Taste and add salt and pepper, as needed.

Step 5

Chill in the fridge for at least 1 hour. Stir before serving. Add an extra spoonful of mayonnaise before serving if macaroni seems too dry.