Seared chicken simmered in a creamy Dijon mustard sauce with sweet caramelized onions. A rich, one-pan dish perfect for cozy meals or easy entertaining.
2 tablespoons olive oil
1 tablespoon butter
2 large yellow onions, thinly sliced
1 ½ pounds boneless, skinless chicken thighs or breasts
3 garlic cloves, 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
In a large skillet, heat butter and oil over medium-low.
Add onions and a pinch of salt. Cook, stirring occasionally, for 25–30 minutes until golden and caramelized. Set aside.
Season chicken with salt and pepper. Increase heat to medium-high, sear chicken 4–5 minutes per side until browned.
Lower heat to medium. Add garlic and cook 30 seconds.
Add broth, scraping pan to deglaze. Stir in mustard and cream.
Return onions and chicken to pan. Cover and simmer 10–15 minutes until chicken is cooked through.
Uncover and reduce sauce if desired. Add herbs, adjust seasoning, and serve.