12 hard cooked eggs
1 tsp. salt
1 tsp. dry mustard
1/2 tsp. pepper
6 tbsp. salad dressing or vinegar

Cut peeled eggs lengthwise into halves. Slip out yolks; mash with fork. Mix in seasonings and salad dressing. Fill whites with egg yolk mixture, heaping it lightly. Arrange on large serving plate. Serve immediately or cover with plastic wrap and refrigerate.