Tender chicken in a rich Dijon mustard cream sauce with sweet caramelized onions. A comforting one-pan dinner that’s packed with flavor and easy to make.
2 tablespoons olive oil
1 tablespoon butter
2 large yellow onions, thinly sliced
1 ½ pounds boneless, skinless chicken thighs or breasts
3 cloves garlic, minced
1 cup low-sodium chicken broth
2 tablespoons Dijon mustard
¾ cup heavy cream
1 teaspoon fresh thyme or rosemary (optional)
Salt and pepper to taste
Heat olive oil and butter in a large skillet over medium-low.
Add onions and salt. Cook slowly, stirring often, for 25–30 minutes until caramelized. Remove and set aside.
Season chicken with salt and pepper. Raise heat to medium-high and sear for 4–5 minutes on each side until golden.
Lower heat. Add garlic and sauté 30 seconds.
Add broth and scrape the pan to deglaze. Stir in mustard and cream until combined.
Return onions and chicken to the pan. Cover and simmer on low for 10–15 minutes until chicken is cooked through.
Uncover and simmer a few more minutes to thicken if needed. Stir in herbs, adjust seasoning, and serve.