Black Pepper Chicken Wings with Mushrooms Recipe

Ingredients:

– 1.5 lbs chicken wings, separated into drumettes and flats (tips discarded, optional)
– 8 oz mushrooms, halved or quartered if large
– 2 tbsp soy sauce
– 1 tbsp oyster sauce (optional, adds umami)
– 1 tbsp black pepper
– 1 tbsp cornstarch
– 1 tbsp brown sugar (or to taste)
– 2 tbsp vegetable oil
– 2 cloves garlic, minced
– 1 scallion, thinly sliced (for garnish)