Cook the chicken. If doing it the hard way, this will take longer. You can cook the popcorn chicken in an air fryer at 400°F for 8 minutes.
Set the burner to high. In a large saucepan or wok add the olive oil, garlic and ginger, toast briefly, then add the soy sauce, vinegar, lime juice, hot sauce and brown sugar. Stir until the sugar is dissolved, and let cook at high heat until the mixture begins to foam and thicken.
In a bowl, mix the cornstarch and broth together into a slurry. Pour the slurry slowly into the sauce and stir. It should thicken quickly.
As the sauce begins to thicken, stir in the sesame oil and then dump the chicken in. Continue stirring gently. Once it reaches desired consistency, remove from heat.
Top with the green onion and sesame seeds. Serve over rice.