Cheese and onion pie

Cheese and Onion Pie (Savory, Golden & Comforting)

There’s nothing quite like a homemade cheese and onion pie—a flaky pastry filled with soft caramelized onions and rich, melty cheese. This classic comfort dish is perfect for lunch, dinner, or even a hearty snack. It’s easy to make, crowd-pleasing, and incredibly satisfying.

Golden, buttery pastry meets sweet-savoury onion and cheese filling in this pie that’s hearty enough to serve with a simple salad or soup.

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Why You’ll Love This Pie

• Flaky, buttery pastry that holds up to a rich filling

• Sweet caramelized onions balanced with sharp cheese

• Simple, wholesome ingredients you probably already have

• Perfect for casual meals or dinner parties

• Vegetarian-friendly

This pie is warm, comforting, and keeps well—making it ideal for meal prep or sharing with friends and family.

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Ingredients

For the Pastry

• 2 ½ cups all-purpose flour

• ½ teaspoon salt

• ¾ cup cold unsalted butter, cubed

• 5–6 tablespoons cold water

(Or use ready-made shortcrust pastry to save time)

For the Filling

• 3 tablespoons butter

• 2 large onions, thinly sliced

• 1 teaspoon sugar (optional, to caramelize)

• 1 teaspoon salt

• ½ teaspoon black pepper

• 1 teaspoon mustard (optional)

• 1 ½ cups grated cheddar cheese (or a mix of cheddar and Gruyère)

• 1 egg, beaten (for brushing)

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How to Make Cheese and Onion Pie

Step 1: Prepare the Pastry

1. In a large bowl, mix flour and salt.

2. Rub in cold butter until mixture resembles breadcrumbs.

3. Gradually add cold water, 1 tablespoon at a time, until dough comes together.

4. Wrap in plastic and refrigerate for 30 minutes.

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Step 2: Caramelize the Onions

1. Heat butter in a skillet over medium heat.

2. Add sliced onions, salt, and sugar. Cook gently for 15–20 minutes, stirring occasionally until soft and golden.

3. Stir in mustard if using, then remove from heat. Let cool slightly.

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Step 3: Assemble the Pie

1. Preheat oven to 375°F (190°C).

2. Roll out two-thirds of the pastry to line a 9-inch pie dish.

3. Spread the caramelized onions evenly in the pastry.

4. Sprinkle the grated cheese over the onions.

5. Roll out remaining pastry and place on top. Seal edges by pressing with a fork or crimping.

6. Cut a few slits in the top for steam to escape. Brush with beaten egg.

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Step 4: Bake

Bake for 35–40 minutes until golden brown and bubbling. If edges brown too quickly, cover loosely with foil for the last 10 minutes.

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Tips for Perfect Cheese and Onion Pie

• Low and slow onions: Caramelizing onions gently brings out their sweetness.

• Cheese choice: Sharp cheddar gives bold flavor; Gruyère adds nuttiness.

• Pastry shortcut: Use store-bought shortcrust or puff pastry for faster prep.

• Make ahead: Pie can be assembled and refrigerated for a few hours before baking.

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Optional Variations

• Add sautéed mushrooms for extra depth

• Include cooked bacon or ham for a non-vegetarian version

• Sprinkle fresh herbs like thyme or parsley into the filling

• Mix in a teaspoon of Dijon mustard for a tangy kick

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Serving Suggestions

Serve warm with:

• A simple green salad

• Tomato soup

• Coleslaw

• Pickles for an extra tangy contrast

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Storage

• Store in the fridge for up to 3 days

• Reheat in the oven to restore crisp pastry

• Pie freezes well: wrap tightly and freeze for up to 2 months

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Final Thoughts

This Cheese and Onion Pie is a classic for a reason. It’s comforting, easy to make, and full of rich, savory flavors that satisfy every bite. Perfect for family meals, lunchboxes, or impressing guests, it’s a dish you’ll return to again and again.