How to Make It
Using a sharp knife, peel the oranges, removing any bitter white pith. Cut in between the membranes to release the orange sections. Arrange the sections in a 10-inch gratin dish or quiche pan.
In the top of a double boiler set over simmering water, combine the egg yolks, sugar, white wine and amaretto. Whisk constantly until thickened and light, about 5 minutes.
Preheat the broiler. Position an oven rack about 6 inches from the heat. Spoon the sabayon over the oranges and broil for about 1 minute, until browned on top.