how to cook chicken adobo pinoy style

👇INGREDIENTS:

👉2 tbsp cooking oil (panggisa)
👉1 medium onion ( sliced)
👉3 cloves garlic (minced)
👉1 kilo chicken
👉2 pcs laurel leaves
👉1/2 cup soy sauce
👉2 tbsp brown sugar (optional)
👉1/2 tsp ground black pepper
👉2 tbsp vinegar