Prepare the Glaze: Mix cornstarch and water in a small bowl until smooth. Add this mixture along with all other sauce ingredients into a small saucepan, stirring well to combine. Heat over low until it simmers gently, stirring occasionally until slightly thickened, approximately 3-5 minutes. Once thickened, remove from heat and let it cool in a bowl.
Preheat Your Oven: While your sauce cools, preheat your oven to 400 degrees Fahrenheit (200 degrees Celsius).
Prepare Your Baking Sheet: Line a baking sheet with lightly oiled foil to prevent sticking. Place salmon filets on this prepared sheet, ensuring they are spaced apart for even cooking.
Baste the Salmon: Generously baste each salmon filet with your prepared orange teriyaki glaze, reserving about half of it for later use in finishing touches.
Bake and Broil: Place your baking sheet in the oven and bake for approximately 14 minutes or until the salmon flakes easily with a fork. After baking, remove from oven and baste again with more glaze before placing under the broiler for about one minute.
Serve It Up: Serve your Orange Teriyaki Salmon over steamed rice or alongside your favorite vegetables. Finish off with additional garnishes like sesame seeds, chopped green onions, or red pepper flakes if desired.