Mystery Cherry Pie
["3 egg whites", "1 c. sugar", "1 tsp. baking powder", "1 tsp. vanilla", "20 Ritz crackers, crushed", "1/2 c. chopped pecans", "8 oz. Cool Whip", "1 can cherry pie filling"]
["Beat egg whites until stiff.", "Beat in sugar and baking powder. Beat in vanilla.", "Fold in Ritz crackers and pecans.", "Spread in buttered 10-inch pie pan and press against sides to form shell. Bake at 325\u00b0 for 20 to 25 minutes, until lightly brown.", "When cool, fill with 8 ounces Cool Whip.", "Top with cherry pie filling. Refrigerate."]
["egg whites", "sugar", "baking powder", "vanilla", "crackers", "pecans", "cherry pie filling"]