Onion and Gruyère Tart

Annabel Karmel's favourite savoury tart, this recipe from her Family Cookbook is a delicious mix of slowly caramelised onions and Gruyère cheese.

Annabel's Family Cookbook
Fuss-free recipes to get the whole family round the table
Quick weeknight dinners and feasts for the weekend
Creative ideas for snacks and lunch boxes


This is my favourite savoury tart; a delicious mix of slowly caramelised onions and Gruyère cheese. It’s easy to make the Parmesan pastry with a food processor.


Makes 8 portions


225g(8oz) plain flour, plus extra for dusting
125g(8oz) butter, cubed
30g (1¼oz) Parmesan cheese
1 medium egg, beaten
For the filling:
a knob of butter
1tbsp olive oil
500g (1lb2oz) onions, thinly sliced
4 large eggs
300ml (10floz) double cream
150ml (5floz) milk
200g (7oz) Gruyère cheese, grated
30g (1¼oz) Parmesan cheese, grated
salt and black pepper

Essential kit

You will need a 24–25cm (9½–10in) deep round loose bottom tart tin.


1 Line a 24–25cm (9½–10in) deep round loose bottom tart tin.

To make the pastry, put the flour, butter and Parmesan in a food processor. Whizz until it looks like breadcrumbs. Add the egg and 1 tablespoon of water and whizz until the mixture forms a ball. Roll out on a clean, lightly floured work surface and line the base and sides of the flan tin with the pastry. Set aside to chill in the fridge for 30–35 minutes.

3 Preheat the oven to 220°C/425°F/Gas7. Prick the base of the flan pastry and line with baking paper and then baking beans. Blind bake the pastry for 10 minutes. Remove the beans and bake for a further 8–10 minutes until lightly golden, then place the pastry case on a baking sheet.

4To make the filling, melt the butter and olive oil in a frying pan. Add the onions and fryover a medium– high heat for 5 minutes. Cover with a lid and gently simmer for 20 minutes until soft and golden brown. Spread onto the base of the tart.

5 Beat the eggs in a bowl. Add the cream and milk and season. Add the Gruyère,then pour into the case.Sprinkle with the Parmesan.

6 Reduce the oven to 180°C/350°F/Gas4. Bake for about 30–35 minutes until lightly golden on top and set in the middle.



See more recipes »

More Tart Recipes

See more recipes »

More Cheese Recipes

See more recipes »

More Vegetarian Recipes