Chicken and Noodles in Spiced Broth

Name: Chicken and Noodles in Spiced Broth
Ingredients: 1/4 teaspoon Sichuan peppercorns; 1/2 teaspoon coarse sea salt; 6 1/2 cups chicken stock, preferably homemade; 2 star anise pods; 1/2 teaspoon black peppercorns; 1/2 cinnamon stick; One 3-inch strip of orange zest; One 4-inch piece of peeled fresh ginger—1 inch cut into fine matchsticks, the rest thinly sliced; Kosher salt and freshly ground pepper; 6 shiitake mushrooms, stems discarded and caps thinly sliced; Four 6-ounce skinless, boneless chicken breast halves; 3 ounces mung bean noodles (see Note); 2 scallions, green parts only, thinly sliced