Bold and Spicy Black Pepper Chicken with Mushrooms: A Flavorful Stir-Fry Delight

Slice the chicken breasts into thin strips against the grain. Set aside.
Slice the mushrooms and onion. Mince the garlic.
Step 2: Cook the Chicken

Heat the vegetable oil in a large skillet or wok over medium-high heat.
Add the chicken strips and cook for 5-7 minutes, or until golden brown and cooked through. Remove the chicken from the skillet and set aside.
Step 3: Sauté the Vegetables

In the same skillet, add a little more oil if needed, then sauté the onion and garlic for 2-3 minutes until fragrant.
Add the mushrooms and cook for an additional 5 minutes, or until the mushrooms release their moisture and become tender.
Step 4: Add the Sauce

Return the chicken to the skillet with the vegetables.
In a small bowl, whisk together the soy sauce, oyster sauce (if using), rice vinegar, black pepper, and chili flakes (if using). Pour the sauce over the chicken and mushrooms, stirring to combine.
Add the cornstarch-water mixture to the skillet and stir until the sauce thickens, about 1-2 minutes.
Step 5: Serve

Season the dish with salt to taste.
Garnish with fresh cilantro or sliced green onions, if desired.
Serve hot over steamed rice, noodles, or enjoy it on its own.
Serving and Storage Tips: