To prepare this delicious hoisin chicken recipe, you'll need to start by making a flavoursome marinade. Combine hoisin sauce, garlic, green onions, soy sauce, sesame oil, and black pepper in a bowl. Mix well to ensure all the ingredients are evenly combined.

Next, place the chicken thighs into a marinating dish and pour the marinade over them. Make sure that the chicken is fully coated in the marinade. For the best results, allow the chicken to marinate for at least 1 hour. If you have more time, you can even marinate it overnight to infuse the flavors.

Once the chicken has marinated, preheat your oven to the appropriate temperature. Take a baking sheet and line it with parchment paper or foil to prevent the chicken from sticking to the pan.

Transfer the marinated chicken thighs to the baking sheet, ensuring that they are arranged in a single layer. Remember to reserve the leftover marinade as it will be used later for basting.

Place the baking sheet with the chicken thighs into the preheated oven. Bake for the specified amount of time, ensuring that you baste the chicken every 10 minutes. Basting helps to keep the chicken moist and adds an extra layer of flavor.

As the chicken cooks, it's important to monitor its internal temperature. The chicken thighs should reach an internal temperature of 165 F (74 C) to ensure that they are fully cooked and safe to consume.

While the chicken is baking, take the reserved marinade and transfer it to a small saucepan. Simmer the marinade over low heat until it thickens slightly. This will create a delicious glaze to serve over the chicken.

Once the chicken thighs have reached the desired internal temperature and are fully cooked, remove them from the oven. Allow the chicken to rest for a few minutes before serving.

To serve, drizzle the thickened marinade glaze over the chicken thighs. This will add a sweet and savory finishing touch to your dish.