Heat oil in a wok or pan over medium-high heat
1 tbsp neutral oil
Add meat to oil, and immediately agitate so it doesn’t clump together, and cook for 1.5 to 2 minutes, or until you notice the edges are browned.
Remove meat to a grate or paper-lined plate and allow to drain
Heat oil in a wok or pan over medium-high heat
1 tsp neutral oil
Add garlic and cook for 10 seconds (do not brown!)
2 tsp minced garlic
Add ¼ cup dark sauce and white sugar
¼ cup dark soy sauce mixture (below), 1 tbsp granulated sugar
Stir until sugar is dissolved, and bring dark sauce up to a boil, about 30 seconds.
Add prepared flank steak and toss in sauce, allowing the sauce to reduce and thicken slightly with the beef, about 30-60 seconds.
Add sesame oil and green onion tops.
½ tsp sesame oil, 2 oz scallion tops
Toss beef with the sesame oil and scallion tops and cook for about 15-20 seconds longer and serve.