Make up the donut mix according to manufacturer’s instructions. Fry and let cool completely. Fill with lemon filling and glaze. Let set up completely. Prepare meringue according to manufacturer directions. Sprinkle tops of donuts with granulated sugar (so meringue has something to “stick to”) and pipe meringue in a swirl, toast meringue and then refrigerate donuts. Serve cold
Meringue must be either baked at 400F for 3-5 minutes or refrigerated.