Brown-butter shortbread bars topped with a firm cornstarch-set lemon curd and a torched, no-weep Swiss meringue.
Keep any yolk out of your egg whites or the meringue won’t whip properly. No torch? Broil 60-90 seconds, watching constantly. Store bars covered in the fridge up to 3 days; the Swiss meringue holds its texture far longer than a French meringue would.