Note: you can combine the orange juice with tangerine or passion fruit juice.
Peel and cut the orange in small pieces. Cook it in the oven or steam it until its tender, puree and reserve. Important: the orange should be cooked with the least amount of liquid possible.
In a different pit dissolve the cornstarch with 1/3 glass of cold water, add the dissolved cornstarch to the flan mixture and cook for 4 or 5 minutes more. Turn off the fire and place in individual molds and let it cool for the entire night before consuming.
Optional: the molds can be coated with caramel before filling them with flan. Accompany it with a cane honey, rice syrup, honey or caramel sauce.