Food & Cooking Recipes Mile-High Meringue Topping 4.1 (8) Close Yield: 6 tartlets Use this meringue topping to finish off Lemon-Meringue Tartlets. Directions In the bowl of an electric mixer fitted with the whisk attachment, whisk egg whites and cream of tartar on medium speed until foamy. Gradually add granulated sugar. Increase speed and whisk until meringue is glossy and forms stiff peaks. Whisk in vanilla until just combined.