This Mary Berry cheese and onion quiche is everything I want in a classic homemade quiche: crisp, buttery pastry with a creamy, just-set filling packed with sweet onions and sharp Cheddar. It bakes up golden, slices neatly once cooled, and tastes even better slightly warm or at room temperature. The method is straightforward and beginner-friendly, especially if you take your time with the blind bake. Total time is around 1 hour 30 minutes, including a short chill.
Ingredients
For the Shortcrust Pastry
- 175g plain flour, plus extra for dusting
- 85g unsalted butter, cold and cubed
- Pinch of fine salt
- 1 large egg yolk
- 2 to 3 tbsp cold water
For the Cheese and Onion Filling
- 1 tbsp unsalted butter (or olive oil)
- 1 large onion (about 200g), thinly sliced
- 200g mature Cheddar, grated
- 3 large eggs
- 200ml double cream
- 100ml whole milk
- 1 tsp Dijon mustard (optional)
- Pinch of freshly grated nutmeg (optional)
- 1/2 tsp fine salt, plus more to taste
- 1/4 tsp freshly ground black pepper
For Blind Baking
- Baking parchment
- Baking beans (or uncooked rice)
How to Make Mary Berry Cheese and Onion Quiche
- Prepare the oven: Preheat the oven to 200°C or 180°C fan. Place a shelf in the middle of the oven so the quiche bakes evenly and the top colours nicely.
- Make the pastry: Tip the flour and salt into a bowl. Rub in the cold butter with your fingertips until it looks like fine breadcrumbs. Stir in the egg yolk, then add just enough cold water (usually 2–3 tbsp) to bring it together into a soft dough.
- Chill the pastry: Flatten the dough into a disc, wrap, and chill for 15 minutes. This helps the pastry stay short and reduces shrinking.
- Roll and line the tin: Lightly flour your worktop and roll the pastry to about 3mm thick. Line a 23cm loose-bottom tart tin, pressing it into the corners. Leave a little pastry overhanging the rim. Chill again for 10 minutes if your kitchen is warm.
- Blind bake the case: Line the pastry with baking parchment and fill with baking beans. Bake for 15 minutes, then lift out the beans and parchment and bake for 5 minutes more, until the base looks dry and lightly coloured. Trim the edge neatly with a small sharp knife.
- Cook the onions: While the pastry bakes, melt the butter in a frying pan over low heat. Add the sliced onion and a small pinch of salt. Cook gently for 10–12 minutes, stirring often, until soft, sweet, and translucent. Set aside to cool slightly.
- Mix the custard: In a jug or bowl, whisk the eggs, double cream, milk, Dijon (if using), salt, pepper, and nutmeg (if using) until smooth. Stir in about three-quarters of the grated Cheddar.
- Assemble the quiche: Scatter the softened onions evenly over the warm pastry case. Pour over the custard mixture slowly so it settles around the onions. Sprinkle the remaining Cheddar over the top.
- Bake: Bake for 25–35 minutes, until the quiche is lightly golden and the centre is just set with a gentle wobble. If the top colours too quickly, loosely cover with foil for the last 10 minutes.
- Cool and slice: Leave the quiche in the tin for 15–20 minutes before removing the ring and slicing. This resting time makes the custard settle so you get clean wedges.

Tips for the Best Cheese and Onion Quiche
How do I stop the pastry going soggy?
Blind bake until the base looks dry and lightly golden, then bake uncovered for an extra 5 minutes. A properly baked base is the difference between crisp pastry and a damp bottom.
Why did my pastry shrink in the tin?
Shrinking usually comes from warm pastry or stretching it as you line the tin. Keep everything cool, chill after lining, and press the pastry into the corners without pulling.
How do I avoid a watery filling?
Cook the onions gently until they are soft and any moisture has steamed off, then cool them a little before adding. Also avoid overloading with extra veg unless it is pre-cooked and well drained.
How do I know when the quiche is done?
Look for a lightly golden top and edges that feel set. The centre should still have a slight wobble when you nudge the tin, it will finish setting as it cools.
Serving Suggestions
- Serve with a simple green salad and a sharp vinaigrette
- Add buttered new potatoes or chips for a proper lunch
- Pair with roasted tomatoes or a bowl of tomato soup
- Pack for picnics with chutney and crunchy coleslaw
Storage
Room Temperature
If your kitchen is cool, you can keep the quiche out for up to 4 hours, which is ideal for serving at lunch or taking on a picnic. Cover loosely with foil or keep in a cake carrier.
Refrigerator
Cool completely, then refrigerate in an airtight container for up to 3 days. For the best texture, bring slices to room temperature or warm gently in a low oven (about 160°C) for 10–12 minutes.
Freezing
Freeze cooled slices or the whole quiche (well wrapped) for up to 2 months. Defrost overnight in the fridge, then reheat in the oven at 160°C until hot throughout. Avoid microwaving if you want to keep the pastry crisp.
Nutrition
- Calories: 430 kcal
- Carbohydrates: 23g
- Protein: 15g
- Fat: 32g
- Saturated Fat: 18g
- Sodium: 560mg
Nutrition values are estimates and will vary depending on ingredients and portion size.
FAQs
Can I use ready-made shortcrust pastry?
Yes. Use about 320–350g ready-rolled shortcrust pastry for a 23cm tart tin. Still blind bake it so the base stays crisp.
What size tin is best for cheese and onion quiche?
A 23cm (9-inch) loose-bottom tart tin is ideal. It gives a nice depth so the filling sets creamy without being too thin.
Can I make this quiche the day before?
Absolutely. Bake, cool, then refrigerate overnight. Serve at room temperature or warm gently in the oven so the pastry stays crisp.
Why is my quiche filling rubbery?
Rubbery filling usually means it was baked too long or at too high a heat. Bake until just set with a slight wobble in the middle, then let it finish setting as it cools.
Can I swap the Cheddar for another cheese?
Yes. Red Leicester, Gruyère, or a mix of Cheddar and a little Parmesan work well. Avoid very wet cheeses unless you balance them with a firmer cheese.
How do I reheat quiche without making the pastry soft?
Reheat in the oven at about 160°C for 10–15 minutes. The microwave will warm it, but it tends to soften the pastry.
Mary Berry Cheese and Onion Quiche Recipe
Course: Lunch, BrunchCuisine: BritishDifficulty: Easy8
slices25
minutes45
minutes90
minutes430
kcal1
hour10
minutesCrisp shortcrust pastry filled with softly cooked onions, mature Cheddar, and a rich, creamy egg custard. A classic British cheese and onion quiche that slices beautifully for lunch, brunch, or picnics.
Ingredients
175g plain flour, plus extra for dusting
85g unsalted butter, cold and cubed
Pinch of fine salt
1 large egg yolk
2–3 tbsp cold water
1 tbsp unsalted butter (or olive oil)
1 large onion (about 200g), thinly sliced
200g mature Cheddar, grated
3 large eggs
200ml double cream
100ml whole milk
1 tsp Dijon mustard (optional, but lovely)
Pinch of freshly grated nutmeg (optional)
1/2 tsp fine salt, plus more to taste
1/4 tsp freshly ground black pepper
Baking parchment and baking beans (or uncooked rice) for blind baking
Directions
- Preheat the oven to 200°C (180°C fan). Roll the pastry, line a 23cm loose-bottom tart tin, chill for 15 minutes, then blind bake for 15 minutes and bake 5 minutes more uncovered.
- Cook the sliced onion in butter over low heat for 10–12 minutes until soft and sweet, then cool slightly.
- Whisk eggs, double cream, milk, Dijon (if using), salt, pepper, and nutmeg (if using). Stir in most of the cheese.
- Scatter onions over the pastry case, pour in custard, top with remaining cheese, then bake 25–35 minutes until just set with a gentle wobble.
- Cool in the tin for 15–20 minutes before slicing. Serve warm or at room temperature.
Notes
- For a crisp base, keep the pastry cold and do not skip the blind bake.
- Cook onions gently so they turn sweet, not brown and bitter.
- Let the quiche cool before slicing for the cleanest wedges.
