Rule For Meringue(Never Fails)  
["4 egg whites", "1/4 tsp. salt", "1 tsp. vanilla", "8 Tbsp. powdered sugar"]
["Add salt to egg whites.", "Beat until they stand up in peaks and are stiff, but not dry.", "Add sugar, very slowly, 1/2 at a time. Beat constantly.", "Beat in vanilla.", "Spread on pie and bake in a slow oven, at 300\u00b0, for about 10 minutes."]
["egg whites", "salt", "vanilla", "powdered sugar"]