- 6 tablespoons (3/4 stick) unsalted butter
- 1 cup chopped yellow onions
- 1/2 cup chopped celery
- Salt and freshly ground black pepper to taste
- 6 tablespoons bleached all-purpose flour
- 2 cups Chicken Stock or canned chicken broth 
- 1 cup half-and-half
- 2 cups peeled and diced Idaho potatoes, cooked in boiling salted water until tender, 6 to 8 minutes
- 1 cup diced carrots, cooked in boiling salted water until tender, 4 to 5 minutes
- 1 cup sweet young peas, fresh or frozen (defrost if frozen)
- 2 cups shredded cooked chicken, white and dark meat
- 2 tablespoons finely chopped fresh parley leaves
- Basic Savory Piecrust 
- Preheat the oven to 400 degrees F.
- Grease a 9 x 9 x 2-inch baking pan.
- Heat the butter in a large sautÈ pan over medium-high heat. Add the onions and celery, season with salt and pepper, and cook, stirring, for 2 minutes. Stir in the flour and cook, stirring, for 3 to 4 minutes to make a blond roux. Stir in the chicken stock and bring the liquid to a boil. Reduce the heat to medium-low and simmer until the sauce begins to thicken, 4 to 6 minutes. Stir in the half-and-half and continue to cook for another 4 minutes. Season with salt and pepper. Stir in the potatoes, carrots, peas, chicken, and parsley, season with salt and pepper, and mix well.
- Line a baking pan with one of the rolled-out piecrusts. Pour the filling into the prepared pan. Place the second crust on top of the filling. Carefully tuck the overlapping crusts into the pan, forming a thick edge. Crimp the edges, cut vents in the top crust, and place on a baking sheet. Bake until the crust is golden brown and crusty, 25 to 30 minutes. Let cool for 5 minutes before slicing to serve.