This One-Pan Balsamic Rosemary Chicken features juicy skillet-seared chicken breasts, savory mushrooms and a rich balsamic rosemary pan sauce - an easy, restaurant-worthy dinner made with simple ingredients in one skillet!
Combine the olive oil, balsamic vinegar and garlic in a gallon-size zip-top bag. Massage to combine. Add the chicken, seal the bag and massage to coat evenly. Refrigerate for at least 1 hour or up to 12 hours.
Cook the Mushrooms
In a large skillet or braiser over medium heat, combine the mushrooms and chicken broth. Bring to a simmer and cook until most of the broth has evaporated.
Add the butter and kosher salt. Stir until the butter has melted, then spread the mushrooms into an even layer. Cook, stirring occasionally, until golden brown. Transfer to a plate and set aside.
Prepare the Sauce
Whisk together the balsamic vinegar, chicken broth, tomato paste, honey, soy sauce, Italian seasoning, and garlic until smooth. Set aside.
Cook the Chicken
Remove the chicken from the marinade and discard the marinade. Pat the chicken dry with paper towels. Season both sides lightly with the kosher salt and pepper.
Add the butter to the same skillet over medium heat. When the butter begins to sizzle gently, add the chicken, smooth side down. Tuck the rosemary sprigs around the chicken.
Cook undisturbed for 3-4 minutes, or until the underside is deep golden brown. Flip and cook for another 2-3 minutes.
Cover the skillet tightly, turn off the heat and let the chicken rest for 5 minutes without lifting the lid. (For thicker chicken breasts, add another 2-3 minutes.) The chicken should reach an internal temperature of 165°F (74°C).
Transfer the chicken to the plate with the mushrooms.
Finish the Dish
Pour the prepared balsamic rosemary pan sauce into the skillet. Bring to a simmer over medium-high heat, scraping up any browned bits from the bottom of the pan.
Return the mushrooms to the skillet and cook for 2-3 minutes, stirring occasionally, until the sauce thickens slightly and coats the mushrooms.
Return the chicken (along with any accumulated juices) to the skillet. Reduce the heat to low and simmer for 2-4 minutes, spooning the sauce over the chicken occasionally until heated through.
Sprinkle with chopped fresh rosemary and serve with mashed potatoes, creamy polenta, pasta or a crisp green salad.
Notes
Smaller chicken breasts cook more evenly and stay juicier than very large ones.
Crimini mushrooms provide the richest flavor, but white button mushrooms work well too.
The chicken may be marinated for up to 12 hours.
The sauce can be prepared one day ahead and refrigerated.
To make ahead, prepare the entire dish and gently reheat over low heat. If needed, stir in a splash of chicken broth to loosen the sauce.
Leftovers keep well in the refrigerator for up to 3 days.