Start by whisking together balsamic vinegar, olive oil, herbs, salt, pepper, and garlic. This aromatic blend is what turns simple chicken into a dish packed with deep flavor.
Place chicken thighs in the marinade and make sure each piece is well coated. Then cover and let them soak up the flavor for at least 30 minutes – overnight is even better.
Preheat your oven to 350°F, then spread the marinated chicken in a baking dish. Bake for about 25–35 minutes, turning once if you like, until the chicken is cooked through and juicy.
Let the chicken rest for a few minutes after baking. This keeps juices locked in and makes it easier to serve.