Caramelize the sugar to a golden color in a pot and deglaze with orange juice.
Pour in Grand Marnier and grenadine and boil halfway.
Mix some cornstarch with cold water and thicken the juice with it.
Let cool and then add the orange slices.
Notes / Tips / Wine Advice:
Fruits of the Cedar
The fruit of the orange tree is the most successful citrus fruit in the world (in the USA alone, 25 billion oranges are harvested yearly), and is available in two main varieties: blond oranges (e.g. Florida, Jaffa, Navel, Sunkist, Valencia) and blood oranges (e.g. Moro, Sanguine, Tarocco). The word “orange” originally comes from Sanskrit and means “cedar apple