In a large bowl, add your sliced steak, soy sauce, rice wine vinegar, 2 T cornstarch, and ginger. Set aside while you're making the sauce.
Add all of the sauce ingredients to a small saucepan. Heat over low/medium for 4-5 minutes stirring often. Set aside.
In a large pan, heat the 3 T of canola oil.
Add the remaining ¼ cup of cornstarch to the sliced steak. Make sure it's all completely coated. If it isn't, add more.
Add the steak to the heated oil and cook for 2 minutes. Flip and cook for an additional minute, making sure it's golden and crisp on both sides. Repeat until all of the steak is cooked.
Coat the cooked steak in the sauce.