Epicurious

Ingredients 1 medium potato, peeled and chopped into 1/4 inch pieces
Substitute 1/2 cup thawed frozen corn kernels here, if you prefer. Add with the carrot and celery in Step 2. 1 tablespoon vegetable oil 1 small onion, finely chopped 1 carrot, quartered lengthwise and chopped 1 celery rib, halved lengthwise and chopped 4 ounces boneless, skinless chicken breast or thighs, chopped
Got some cooked chicken? Add it with the potatoes in step 3 instead. Salt and pepper1 tablespoon all-purpose flour 1/2 cup chicken broth 1/2 teaspoon fresh thyme leaves 2 unbaked pie crusts, either store bought or homemade (not pie shells) 1 egg, beaten with 1 tablespoon water