Sprinkle vegetables and chicken with the flour and cook 3 minutes, stirring continuously.
¼ cup all-purpose flour
Stir in chicken stock and scrape the bottom of the pan to deglaze the pan.
2 cups low-sodium chicken broth
Pour in the white wine and cream. Stir well.
¼ cup white wine, 1 cup heavy cream
Season-to-taste with salt and add the pepper, thyme and basil. Stir well and continue to cook until thickened to a thick-stew consistency.
½ teaspoon kosher salt, 1 teaspoon freshly ground black pepper, ½ teaspoon dried thyme, ¼ teaspoon ground sweet basil
Pour chicken stew mixture into the prepared casserole dish.
Roll the piecrust to ¼ inch thickness and into 1-inch strips to create a lattice top. Or, drape it over the chicken stew mixture, and trim or crimp in the sides.
Combine egg and water and brush the pastry with the egg mixture.
1 large egg
Bake on the center rack of the oven for 35-45 minutes, or until the top is golden.
Video
Notes
Storage: Store chicken pot pie casserole tightly wrapped in the refrigerator for up to 3 days or in the freezer for up to 2 months.