Whisk the cornstarch, hoisin and vinegar together in a medium bowl until well combined, then whisk in the chicken broth. Lightly beat the eggs in small bowl.
Heat a wok or large nonstick skillet over medium-high heat and when hot swirl in 1 tablespoon of the oil. Add the eggs and cook, undisturbed, until almost set, about 2 minutes. Flip the eggs and continue to cook until set, about 1 minute more. Transfer the omelet to a cutting board and cut into strips.
Pour the remaining 1 tablespoon oil into the wok and return to medium-high heat. Once hot add the anchovies, garlic, ginger, and scallion whites and cook, stirring, for 30 seconds. Add the pork and continue to cook, stirring and breaking up any clumps, until brown, about 5 minutes. Add the broccoli, a splash of water, and 1/2 teaspoon salt and continue to cook, stirring, until crisp-tender, about 2 minutes. Give the hoisin sauce a quick whisk and add it to the wok. Bring to a simmer and cook, stirring, until slightly thickened, about 2 minutes. Stir in the omelet and scallion greens and serve over rice.
Copyright 2016 Television Food Network, G.P. All rights reserved.