In a large sauce pan, add peeled Mandarins, zest, water, garlic, grated ginger, sugar, salt and soy sauce and bring mixture to a boil.
Press down on the Mandarins so the juices are released.
Once at a boil, remove orange peel and reduce to a simmer. Cook for 5 minutes or until oranges release there juice.
Add vinegar and sriracha and stir.
Use a fine mesh strainer to strain the juice and sauce from the oranges.
Return the juice portion to the pot.
In another bowl, make a slurry with cornstarch and water
Bring to a boil and whisk in the cornstarch slurry.
Once it thickens slightly remove from heat and set aside.
Instructions to make chicken and garnish:
Toss diced chicken breasts in cornstarch and salt and set aside.
In a frying pan, add sesame oil and vegetable oil and heat to high heat.
Add chicken chunks and shallow fry them until cooked.
Place on a paper towel.
Toss chicken in Mandarin sauce and top with diced green onions.
Serve over rice.