KATIE LEE'S CHICKEN POT PIE

Steps:

• Line a baking sheet with parchment paper. On a lightly floured surface, roll out the pastry dough with a floured rolling pin. Transfer to the lined baking sheet, cover with plastic wrap and refrigerate while preparing the pie filling.
• Combine the broth, peppercorns, thyme sprigs, bay leaves and quartered onion in a large pot over high heat. Bring to a boil, reduce the heat to a simmer and simmer for 30 minutes. Add the chicken breasts. Raise the heat and return to a boil. Reduce the heat and simmer until the chicken is just cooked through, 10 to 15 minutes.
• Transfer the chicken to a plate to cool. Strain the stock and set aside 2 1/2 cups; reserve the remaining stock for another use. When the chicken is cool to the touch, cut it into bite-size chunks and set aside.
• Preheat the oven to 375 degrees F.
• Melt the butter in a large skillet over medium heat. Add the pearl onions and carrots and cook, stirring occasionally, for about 5 minutes. Add the mushrooms and peas and cook another 5 minutes. Stir in the 5 tablespoons flour and cook 1 minute more. Add the reserved stock and the milk, stirring constantly. Cook until the sauce begins to thicken, about 5 minutes. Remove from the heat and add the chicken, chopped thyme, salt and pepper.
• Remove the pastry from the refrigerator and cut into 4 circles using one of the 2-cup ovenproof bowls as a guide.
• Spoon the filling into four 2-cup ovenproof bowls, then place 1 dough circle on each pot pie, pressing around the edges to seal the pastry to the bowl. Cut a vent in the center of each. Using a pastry brush, brush the outer surface of each pie with egg wash. Bake until the pastry is puffed and dark golden brown, about 35 minutes.