Mystery Pie
["20 Ritz crackers, rolled fine", "1 tsp. vanilla", "3 egg whites, with a dash of salt", "1 c. sugar", "1 c. finely chopped pecans", "1 tsp. baking powder"]
["Whip the egg whites; add sugar and baking powder.", "Fold in cracker crumbs and pecans.", "Butter a 9-inch pan.", "Put mixture in pan.", "Bake at 325\u00b0 for 30 minutes or a little less.", "Cover pie with whipped cream; sprinkle with nutmeg.", "Cut in wedges."]
["crackers", "vanilla", "egg whites", "sugar", "pecans", "baking powder"]