Mary Berry Chicken Leek Pie is a comforting, creamy, and beautifully golden dish that brings together tender chicken, soft sautéed leeks, and a rich white sauce, all tucked beneath a crisp, flaky pastry lid. This classic British pie is ideal for cosy family dinners, weekend meals, or whenever you want something warm and wholesome on the table.
The combination of juicy chicken, sweet leeks, and buttery pastry creates a satisfying balance of flavours that feels both simple and luxurious. With straightforward ingredients and reassuring steps, this recipe is perfect for beginners and experienced home cooks alike.
What Is Mary Berry Chicken Leek Pie?
Mary Berry Chicken Leek Pie is a savoury dish made with cooked chicken pieces, softened leeks, and a creamy béchamel-style sauce, all baked under puff pastry. It’s a traditional British comfort food known for its hearty filling and crisp, golden topping.

Other Popular Mary Berry Recipes
- Mary Berry Blackberry and Apple Pie
- Mary Berry Cherry and Almond Cake
- Mary Berry Chocolate Swiss Roll
- Mary Berry Christmas Stollen
Why This Recipe Is Worth Trying
- Combines tender chicken and sweet leeks with a creamy sauce
- Uses simple, everyday ingredients that are easy to find
- Creates a filling and comforting meal for the whole family
- Works perfectly with shop-bought puff pastry for convenience
- Delivers a homely, rustic dish with minimal effort in the kitchen
Essential Ingredients to Make Mary Berry Chicken Leek Pie
For the Filling:
- 500g cooked chicken (shredded or diced)
- 2 large leeks (thinly sliced)
- 1 onion (finely chopped)
- 2 tbsp butter
- 2 tbsp flour
- 400ml chicken stock
- 150ml milk
- 1 tsp mustard
- Salt and pepper to taste
- Handful of fresh parsley (optional)
For the Topping:
- 1 sheet ready-rolled puff pastry
- 1 egg (beaten for glaze)
Handy Kitchen Tools for Best Results
- Deep frying pan
- Wooden spoon
- Sharp knife
- Mixing bowl
- Rolling pin (if needed)
- Oven-safe pie dish
- Pastry brush
Step-by-Step Guide to Making Mary Berry Chicken Leek Pie
Step 1: Prepare the vegetables
Slice the leeks thinly, chop the onion, and set aside so everything is ready for cooking.
Step 2: Sauté the leeks and onion
Add butter to a pan and gently cook the leeks and onion until soft and fragrant, allowing their natural sweetness to develop.
Step 3: Make the creamy sauce
Stir in the flour and cook for a minute, then gradually add the chicken stock and milk, whisking to create a smooth, thick sauce.
Step 4: Add the chicken
Stir the cooked chicken into the sauce along with mustard, seasoning, and parsley, mixing until everything is well combined.
Step 5: Fill the pie dish
Spoon the warm filling into a pie dish, spreading it evenly so the pastry sits neatly on top.
Step 6: Add the pastry lid
Lay the puff pastry sheet gently over the dish, pressing the edges to seal and trimming any excess. Brush with beaten egg.
Step 7: Bake the pie
Bake at 200°C (400°F) for about 25–30 minutes until the pastry turns golden, crisp, and beautifully puffed.
Step 8: Serve warm
Let the pie sit for a few minutes before slicing so the filling settles and serves neatly.

What I Got Wrong (And How I Fixed It)
- Sauce too thin — simmering for a few extra minutes thickened it perfectly
- Pastry soggy — ensuring the filling cooled slightly before topping solved it
- Pie lacked flavour — adding mustard and parsley brightened the taste
- Pastry shrank — chilling the pie before baking helped keep its shape
Healthier Version of Mary Berry’s Chicken Leek Pie
You can lighten this pie by using semi-skimmed milk, low-fat cream, or replacing puff pastry with filo sheets. Adding extra vegetables such as mushrooms or peas boosts nutrients without losing comfort.
Ingredient Substitutions for Mary Berry Chicken Leek Pie
- Swap chicken for turkey when using holiday leftovers
- Use leeks and mushrooms for a deeper savoury flavour
- Replace mustard with garlic for a gentler seasoning
- Use gluten-free flour and pastry for intolerance-friendly cooking
- Try shortcrust pastry if you prefer a sturdier topping
Pairing Ideas: What to Serve With Mary Berry Chicken Leek Pie
- Creamy mashed potatoes – Adds extra comfort and richness
- Steamed broccoli – Balances the creamy filling
- Crisp green salad – Freshens the plate with a light crunch
- Buttered peas – Complements the mild sweetness of leeks
- Roasted carrots – Adds warm colour and natural sweetness
Expert Tips to Make Perfect Chicken Leek Pie
- Cook the leeks slowly to bring out maximum sweetness
- Let the sauce thicken fully before adding the chicken
- Cool the filling slightly so the pastry stays crisp
- Brush pastry generously for a glossy golden finish
- Seal the edges well to prevent bubbling leaks
- Score the pastry top to allow steam to escape
Creative Ways to Customize Mary Berry Chicken Leek Pie
- Add a garlic-infused sauce for deeper flavour
- Mix in bacon pieces for a smoky, savoury twist
- Use thyme or rosemary to introduce herbal notes
- Add cheddar cheese to the filling for extra creaminess
- Top with sesame seeds for a bakery-style finish
Storing Mary Berry Chicken Leek Pie the Right Way
- Keep leftovers in the fridge for up to 3 days
- Store in an airtight container to retain freshness
- Freeze unbaked pies for convenient future meals
- Reheat gently to avoid drying the filling
How to Reheat Cowboy Caviar (If Needed)
Cowboy caviar is a chilled dish and doesn’t require reheating.
Nutritional Breakdown (per serving)
- Calories: ~420
- Carbohydrates: 28g
- Fat: 24g
- Protein: 22g
- Sugars: 5g
Mary Berry Chicken Leek Pie Recipe
Mary Berry Chicken Leek Pie is a savoury dish made with cooked chicken pieces, softened leeks, and a creamy béchamel-style sauce, all baked under puff pastry. It’s a traditional British comfort food known for its hearty filling and crisp, golden topping.
- Prep Time: 20
- Cook Time: 30
- Total Time: 50 minutes
- Yield: 6 1x
- Category: Main Course
- Method: Baking
- Cuisine: British
Ingredients
For the Filling:
-
500g cooked chicken (shredded or diced)
-
2 large leeks (thinly sliced)
-
1 onion (finely chopped)
-
2 tbsp butter
-
2 tbsp flour
-
400ml chicken stock
-
150ml milk
-
1 tsp mustard
-
Salt and pepper to taste
-
Handful of fresh parsley (optional)
For the Topping:
-
1 sheet ready-rolled puff pastry
-
1 egg (beaten for glaze)
Instructions
Slice the leeks thinly, chop the onion, and set aside so everything is ready for cooking.
Add butter to a pan and gently cook the leeks and onion until soft and fragrant, allowing their natural sweetness to develop.
Stir in the flour and cook for a minute, then gradually add the chicken stock and milk, whisking to create a smooth, thick sauce.
Stir the cooked chicken into the sauce along with mustard, seasoning, and parsley, mixing until everything is well combined.
Spoon the warm filling into a pie dish, spreading it evenly so the pastry sits neatly on top.
Lay the puff pastry sheet gently over the dish, pressing the edges to seal and trimming any excess. Brush with beaten egg.
Bake at 200°C (400°F) for about 25–30 minutes until the pastry turns golden, crisp, and beautifully puffed.
Let the pie sit for a few minutes before slicing so the filling settles and serves neatly.
FAQs
Why is my chicken and leek pie filling too runny?
The filling turns runny when the sauce isn’t cooked long enough to thicken. Simmering the flour, stock, and milk mixture for a few extra minutes helps it thicken properly before adding the chicken.
How do I stop the puff pastry from going soggy on top of the pie?
Letting the filling cool slightly before adding the pastry prevents steam from softening it. Brushing the pastry with beaten egg and baking on a high shelf also keeps it crisp and golden.
Why are my leeks turning watery instead of soft and sweet?
Leeks release excess moisture when cooked too quickly. Sautéing them gently over medium heat helps them soften slowly, bringing out their natural sweetness without becoming watery.
Can I prepare Mary Berry Chicken Leek Pie ahead of time?
Yes, you can assemble the pie ahead and chill it for a few hours before baking. The pastry stays crisp as long as the filling is cooled before topping.
Wrapping It Up
Mary Berry Chicken Leek Pie brings homely comfort, simplicity, and creamy satisfaction to your table with minimal fuss. With tender chicken, soft leeks, and golden pastry, it’s a dish that always feels welcoming and warm. Perfect for family dinners, batch cooking, or cosy weekends, this pie delivers satisfying flavour every time.
