"The sauce is crazy addictive...."
low-sodium soy sauce, divided
Juice of 1/2 lime
packed brown sugar, divided
cornstarch, divided
Kosher salt
Freshly ground black pepper
sirloin steak, sliced thinly against grain
vegetable oil
cloves garlic, minced
low-sodium beef (or chicken) broth
Sriracha (optional)
head broccoli, cut into florets
Sesame seeds, for garnish
Thinly sliced green onions, for garnish