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Irresistible Puff Pastry Chicken Pot Pie

A comfort food dinner with creamy thyme-seasoned chicken and vegetable filling in a deep baking dish topped with refrigerator-cold puff pastry baked shatteringly golden and dramatically puffed at 400°F in just 55 minutes.
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Prep Time 20 minutes
Cook Time 35 minutes
Total Time 55 minutes
Servings: 6 servings
Course: Dinner, Main Course
Cuisine: American
Calories: 580
Ingredients Equipment Method Notes

Ingredients
  

  • 3 cups cooked chicken shredded or cubed; rotisserie preferred
  • 2 tbsp olive oil
  • 2 tbsp butter
  • 1 medium yellow onion diced
  • 2 carrots peeled and diced
  • 2 ribs celery diced
  • 1 cup frozen peas thawed
  • 0.33 cup all-purpose flour for the roux
  • 2 cups chicken broth added gradually while whisking
  • 0.5 cup heavy cream or half-and-half
  • 1 tsp dried thyme or 1 tbsp fresh thyme
  • 0.5 tsp salt
  • 0.5 tsp black pepper
  • pinch crushed red pepper flakes optional
  • 1 sheet frozen puff pastry thawed overnight in the refrigerator, kept cold until assembly
  • 1 egg beaten for egg wash

Equipment

  • large skillet
  • 9-inch deep-dish pie plate or 2-quart baking dish
  • Rimmed baking sheet
  • whisk
  • pastry brush

Method
 

  1. Preheat oven to 400°F (200°C). Grease a 9-inch deep-dish pie plate or 2-quart baking dish. Place a rimmed baking sheet on the rack below to catch drips.
  2. Melt butter with olive oil in a large skillet over medium heat. Sauté onion, carrots, and celery for 6 to 8 minutes until fully softened.
  3. Sprinkle flour over the vegetables. Stir constantly for 1 to 2 minutes until the flour coats everything and the raw smell is gone.
  4. Gradually pour the chicken broth in a slow, steady stream while whisking continuously. Simmer for 3 to 5 minutes until the sauce thickens to coat the back of a spoon.
  5. Remove from heat. Stir in heavy cream, chicken, peas, thyme, salt, pepper, and red pepper flakes. Taste and adjust seasoning.
  6. Pour the warm filling into the prepared baking dish and spread evenly.
  7. Lay the cold puff pastry sheet over the filling. Trim to leave about 1-inch overhang and press gently against the rim. Cut 3 to 4 steam vents in the center.
  8. Brush the entire pastry surface generously with beaten egg wash.
  9. Place on the preheated baking sheet and bake for 25 to 30 minutes until the pastry is puffed high and deep golden brown. Apply a second egg wash coat at 15 minutes for deeper color.
  10. Rest for 10 minutes before scooping to allow the filling to set slightly.

Notes

Cold Pastry is Critical: Thaw puff pastry overnight in the refrigerator. Counter-thawed pastry has softened butter layers that won't steam properly and produce a flat rather than puffed topping. Roux Timing: Cook the flour for a full 1 to 2 minutes before adding broth. Under-cooked roux produces a raw flour taste and thin sauce. Gradual Broth Addition: Pour broth slowly while whisking continuously to prevent lumps. All at once overwhelms the roux. Warm Filling: Assemble with warm filling directly from the stovetop for even oven heating. Cold filling extends bake time and risks overbrowning the pastry. Steam Vents: Essential for pressure release. Without vents the crust lifts unevenly or cracks. Double Egg Wash: Apply a second coat at the 15-minute mark for the deepest golden color. Individual Pot Pies: Divide among ramekins, cut pastry rounds to fit, bake 18 to 20 minutes. Turkey Version: Replace chicken with leftover turkey and add sage alongside thyme. Storage: Refrigerate for up to 3 days. Reheat uncovered at 350°F for 20 minutes or in air fryer at 325°F for 8 minutes.