To prepare the four flames oysters harlon appetizers recipe, first you'll need to gather your ingredients. First, preheat the oven to 375 degrees F (190 degrees C) and prepare your oven rack. In a large skillet, heat the olive oil over medium-high heat. Add the halibut and cook, turning occasionally, until browned on all sides, 3 to 4 minutes. Remove from the heat and set aside to cool. Meanwhile, in the bowl of an electric mixer fitted with the whisk attachment, beat the egg whites on medium speed until stiff peaks form. Gradually add the confectioners' sugar, beating after each addition until the mixture is stiff and glossy, about 1 minute. Then, gradually fold the dry ingredients into the wet ingredients until they're just combined. Finally, add salt and pepper to taste.