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Mushroom Party Puffs

"If you like mushrooms," assures Patricia Kile from Elizabethtown, Pennsylvania, "you'll love this appetizer! As soon as I tasted it for the first time at a friend's house, I had to get the recipe." Not on the rich side—but full cheese and seasonings—the puffs are satisfying by themselves or as accompaniments to other dishes.
  • Total Time
    Prep/Total Time: 25 min.
  • Makes
    12-15 servings


  • 36 medium fresh mushrooms
  • 3 tablespoons butter or margarine
  • 1 cup mayonnaise
  • 1 cup finely shredded Swiss cheese
  • 1/4 cup Dijon mustard
  • 1/4 cup minced fresh parsley
  • 1/2 teaspoon onion powder
  • 2 large egg whites


  • Remove and discard mushroom stems. In a skillet, saute mushroom caps in butter. In a bowl, combine mayonnaise, cheese, mustard, parsley and onion powder. Beat egg whites until stiff; fold into mayonnaise mixture. Spoon into mushroom caps. Place in an ungreased 15x10x1-in. baking pan. Bake at 450° for 8-10 minutes or until golden brown.

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