If the oysters are hot but not browned, they may be placed under a hot broiler for 1 minute.
If desired, brown under a hot broiler for a few seconds.
Then, run the dish under a hot broiler for 2 to 3 minutes to brown the top.
Cook for 30 to 35 minutes, then place under a hot broiler for 4 to 5 minutes to brown stuffing on top.
Beaten eggs are poured in and when they have set, the frittata is put under a hot broiler to brown.
You can put it in a hot broiler at the last minute if you like a browned top.
If the top needs additional browning, place the gratin under a hot broiler for a few minutes before serving.
Skin should be crisp; if not, transfer to hot broiler.
Then place the skillet under a hot broiler, 3 or 4 inches from the heat, and cook for about 3 minutes, until eggs are set.
A good hot broiler can approximate the cooking technique of an outdoor grill.