Ingredients
Equipment
Method
- Heat olive oil in a large skillet over medium-high heat. Season chicken strips with salt, pepper, and garlic powder. Cook in a single layer for 5 to 7 minutes, turning once, until golden and cooked through. Work in batches if needed to avoid crowding. Remove chicken and set aside.
- In the same skillet, melt the butter over medium heat. Add mushrooms and onion in a single layer. Cook undisturbed for 3 to 4 minutes to develop browning, then stir and cook another 2 minutes until onion is translucent. Add garlic and stir for 1 minute.
- Sprinkle flour over the vegetable mixture and stir constantly for 1 minute to cook out the raw flour taste.
- Slowly pour in the chicken broth while whisking to prevent lumps. Stir in Worcestershire sauce and Dijon mustard. Simmer for 3 to 5 minutes until the sauce thickens and coats the back of a spoon.
- Reduce heat to low. Stir in sour cream until the sauce is completely smooth. Do not let the sauce boil after adding the dairy.
- Return the chicken and any collected juices to the skillet. Stir to coat and heat through for 2 minutes over low heat.
- Garnish with fresh parsley and a pinch of paprika. Serve immediately over egg noodles, mashed potatoes, or rice.
Notes
Storage: Refrigerate in an airtight container for up to 3 days. Reheat gently on the stovetop over low heat with a splash of milk or chicken broth to loosen the sauce. Not recommended for freezing as dairy-based sauces can separate. Substitutions: Chicken thighs work well and stay juicier than breasts. Use Greek yogurt instead of sour cream for added protein - stir in off the heat. For gluten-free, replace flour with a cornstarch slurry. Tip: Do not rush the mushrooms. Letting them sit undisturbed in the pan develops the brown crust that drives the umami flavor of the entire sauce.
