Step 1: Make the teriyaki sauce by combining soy sauce, brown sugar, sesame oil, finely grated garlic, finely grated ginger, and cornstarch in a small bowl. Set aside until the meat is finished cooking.
Step 2: Heat a large skillet on medium heat. Drizzle 2 Tablespoons of canola oil into the pan and then add the steaks. Let them brown on both first sides. 5-6 minutes for large steaks over 1 inch thick and 3-4 for thinner cuts around ½ inch thick.
Step 3: Once meat has rested for 10-15 minutes, slice steak into bites by cutting in half lengthwise and then cutting against the grain to make 1 inch pieces.
Step 4: – Once the sauce begins to thicken, return steak pieces to the pan and toss with teriyaki sauce until the sauce fully thickens.