Deviled Eggs
["6 hard-cooked eggs, cut in halves", "1/2 tsp. salt", "1/4 tsp. pepper", "1/2 tsp. mustard", "about 3 Tbsp. salad dressing", "vinegar (I like juice from sweet pickles) or cream (enough to moisten)"]
["Slip out yolks; mash with fork.", "Mix in salt, pepper and mustard and add salad dressing and vinegar.", "Refill whites with egg mixture, heaping it up slightly."]
["eggs", "salt", "pepper", "mustard", "salad dressing", "vinegar"]