For the noodles
01 -
8 oz (225 g) wide egg noodles
02 -
1 teaspoon kosher salt, for the pasta water
03 -
1 tablespoon unsalted butter, optional for tossed noodles
For the chicken and mushrooms
04 -
1 1/4 lb (565 g) boneless skinless chicken thighs, cut into bite-size pieces
05 -
1 teaspoon kosher salt, divided
06 -
1/2 teaspoon black pepper
07 -
1 tablespoon olive oil
08 -
3 tablespoons unsalted butter, divided
09 -
10 oz (285 g) cremini mushrooms, sliced
10 -
1 small yellow onion, finely chopped
11 -
3 cloves garlic, minced
For the sauce
12 -
2 tablespoons all-purpose flour
13 -
1 1/2 cups (360 ml) low-sodium chicken broth
14 -
1 teaspoon Dijon mustard
15 -
1 teaspoon Worcestershire sauce
16 -
1/2 cup (120 g) full-fat sour cream, room temperature
17 -
2 tablespoons chopped fresh parsley or chives