Directions

1. Heat 1 1/2 teaspoons oil in a Dutch oven over medium-high heat. Reduce heat to medium. Add half the chicken and season with 1/8 teaspoon each salt and pepper. Cook, stirring occasionally, until the chicken is browned on all sides and no longer pink in the center, 5 to 8 minutes. Transfer to a plate and repeat with another 1 1/2 teaspoons oil, the remaining chicken and 1/8 teaspoon each salt and pepper. Set aside.
2. Add another 1 1/2 teaspoons oil to the pot. Add mushrooms and cook, stirring, until they begin to soften and give off liquid, 3 to 5 minutes. Add the remaining 1 1/2 teaspoons oil and onions. Cook, stirring and reducing heat as necessary to keep them from burning, until the onions soften and start to turn golden, 10 to 15 minutes.
3. Add flour and garlic to the pot and cook, stirring, for 1 minute. Pour in Marsala and cook, stirring, for 1 minute more. Add broth and bring to a simmer. Reduce the heat to low, cover and cook, stirring often, until thickened, about 5 minutes. Add vinegar and the reserved chicken, along with any juice. Return to a simmer. Season with additional pepper, if desired.

Tips

• Tip: Marsala, a fortified wine from Sicily, is a flavorful addition to many sauces. For this recipe, don’t use the “cooking Marsala” sold in many supermarkets—it can be surprisingly high in sodium. An opened bottle can be stored in a cool, dry place for months.