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Individual ceramic pie dish with a flaky crust, revealing a creamy chicken and leek filling, paired with smooth buttery mash.
TahaCooks Editor

Traditional Chicken Pie & Creamy Mash

A quintessential family favourite featuring a golden, flaky pastry lid over a succulent chicken and leek filling, served alongside a mountain of buttery, cloud-like mashed potatoes.
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Prep Time 20 minutes
Cook Time 35 minutes
Potato Boiling Time 20 minutes
Total Time 55 minutes
Servings: 4 People
Course: Dinner, Family Favourites
Cuisine: British, Country Style, Traditional
Calories: 950
Ingredients Equipment Method Notes

Ingredients
  

The Pie Filling & Crust

  • 600 g Chicken Breast or Thigh Thighs stay juicier during the bake; cut into bite-sized chunks.
  • 1 sheet Puff Pastry Store-bought (all-butter) works best for a flaky lid.
  • 2 Large Leeks or Onions Leeks add a lovely sweetness to chicken pies.
  • 250 g Mushrooms Optional; chestnut mushrooms add great earthy flavor.
  • 300 ml Chicken Stock Use high-quality stock for a richer gravy.
  • 100 ml Double Cream Adds that "creamy" signature finish to the filling.
  • 2 tbsp Plain Flour To thicken the sauce into a roux.
  • 1 tbsp Fresh Thyme or Parsley Fresh herbs make a massive difference in aroma.
  • 1 Large Egg Beaten, for the egg wash to get that golden crust.

The Creamy Mash

  • 1 kg Maris Piper or Yukon Gold Use starchy potatoes for the fluffiest mash.
  • 50 g Unsalted Butter Don't be shy—butter is the secret to "creamy."
  • 100 ml Whole Milk or Cream Warm it up before adding to keep the potatoes hot.
  • _ _ Salt & Black Pepper Season generously at every stage.

Equipment

  • 1 Large Baking Dish A 1.5L to 2L ovenproof dish (ceramic or glass) for the pie filling and pastry lid.
  • 1 Deep Saucepan For boiling the potatoes until tender.
  • 1 Large Frying Pan or Skillet To sauté the chicken and leeks and simmer the creamy sauce.
  • 1 Potato Masher Use a hand masher or a ricer for a perfectly smooth, cloud-like texture.
  • 1 Colander For draining the potatoes (ensure they steam-dry for a minute for better mash).
  • 1 Pastry Brush For brushing egg wash or milk onto the pastry lid for a golden finish.
  • 1 Chef’s Knife & Board For prepping the chicken and dicing the vegetables.
  • 1 Whisk Whisk

Method
 

The Creamy Mash

  1. Boil the Potatoes:
    Place chopped potatoes in a large pot of cold salted water. Bring to a boil, then simmer for 15–20 minutes until tender.
  2. Steam Dry:
    Drain the potatoes in a colander, then return them to the hot pot for 1 minute (off the heat) to let excess moisture evaporate.
  3. Mash:
    Use your masher or ricer until smooth. Fold in the butter and warm milk/cream. Season generously with salt and white pepper. Set aside (keep covered).

The Chicken Filling

  1. Sear the Chicken:
    In your deep skillet, heat a splash of oil. Brown the chicken chunks in batches until golden (they don't need to be fully cooked yet). Remove and set aside.
  2. Sauté Aromatics:
    In the same pan, melt a knob of butter. Add the leeks (and mushrooms, if using) and sauté for 5–8 minutes until soft and translucent.
  3. Make the Sauce:
    Stir in the flour and cook for 1–2 minutes to toast it. Gradually pour in the chicken stock, whisking constantly to avoid lumps. Bring to a simmer until thickened.
  4. Combine:
    Stir in the double cream, fresh herbs, and the browned chicken. Season to taste.

Assembly & Baking

  1. Fill:
    Pour the chicken mixture into your Large Baking Dish. Let it cool for 10 minutes (this prevents the pastry from melting instantly).
  2. Top:
    Unroll the puff pastry and drape it over the dish. Trim the edges, press down with a fork to seal, and cut a small slit in the center for steam.
  3. Glaze & Bake:
    Brush the top thoroughly with the beaten egg wash. Bake at 200°C (400°F) for 25–30 minutes until the pastry is risen and deep golden brown.

Notes

Serving & Presentation

  • The Plate: Place a generous scoop of mash off-center; create "swirls" with a spoon to catch the light.
  • The Pie: Slice the pastry lid cleanly and perch it at an angle over the creamy filling to keep it crisp.
  • Color: Add a pop of green with fresh parsley or chives.
  • The Side: Serve with steamed broccoli or peas to cut through the richness.