Meringue Shells(Elegant Dessert)  
["3 egg whites, at room temperature", "1/4 tsp. cream of tartar", "1/4 tsp. salt", "1 c. sugar"]
["Beat egg whites, cream of tartar and salt until frothy, using electric mixer.", "Start adding sugar, 1 tablespoon at a time, as whites continue to beat.", "Continue to beat until all sugar is used and meringue is stiff."]
["egg whites", "cream of tartar", "salt", "sugar"]