It only takes one hour to make this caramelized onion and gruyère cheese tart that works a treat for brunch or even a light dinner. This gruyère tart recipe uses readymade pastry, so you can easily prepare it on short notice to impress guests.
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You can't beat a savoury tart for brunch, and this gruyère caramelised onion tart looks and tastes amazing despite only requiring a moderate amount of effort to make.
I use readymade pastry for this onion gruyère tart, but you can make your own if you want; it will definitely take more time to make it, though.
Caramelized onions and gruyère cheese are a winning combination in this tart, which is perfect for a fuss-free dinner that feels like a treat. It goes well with a glass of white wine and a salad.
What ingredients go in this gruyere cheese tart?
One of the best things about this gruyère cheese tart recipe is the reduced number of ingredients you need to make it.
Here's what you need to make it:
- 320 g (12 oz) shortcrust pastry (pie crust)
- 3 onions, large, sliced
- 60 g (½ stick) butter
- 200 ml (1 cup) double cream (heavy cream)
- 3 eggs, large
- 100 g (3.5 oz) gruyere cheese, grated
- 25 g (1 oz) Parmesan, grated
- 3 sprigs fresh thyme
Depending on where in the world you are, you'll find shortcrust pastry under different names. You need the kind used for pie crusts, not the puff pastry kind.
How do you make the tart?
- Heat the oven to 190C/375F. Unpack the pastry sheet and line a 23 cm (9-inch) tart tin.
- Place the pastry sheet in the lined tin and fill the tart with baking beans. Blind bake for 15 minutes. Remove the beans and paper and bake for another 10 minutes.
- Meanwhile, melt the butter in a frying pan over medium heat and add the sliced onions. Turn the heat to low and cook for 20-25 minutes until caramelized. Stir from time to time to make sure the onions caramelize evenly.
- In a medium bowl, mix the eggs, double cream (heavy cream), gruyère, and chopped thyme. Season with salt and pepper.
- Stir the onions into the egg mix and pour everything into the tart case.
- Sprinkle the parmesan on top and cook for 25 minutes or until set and golden brown.
- Allow the tart to cool for five minutes before cutting into slices.
If you liked this gruyère tart recipe, check out some of my other brunch recipes:
- Spinach, Mushroom and Goat’s Cheese Quiche
- Goat Cheese and Pesto Whirls with Pine Nuts
- Savoury Muffins with Spinach, Sundried Tomatoes and Feta Cheese
Looking for more delicious inspiration? Follow Skinny Spatula on Instagram, Facebook, and Pinterest!
Caramelized Onion and Gruyère Cheese Tart
Ingredients
- 320 g (12 oz) shortcrust pastry
- 3 onions, large, sliced
- 60 g (2 oz) butter
- 200 ml (¾ cup) double cream (heavy cream)
- 3 eggs, large
- 100 g (3.5 oz) gruyere cheese, grated
- 25 g (¼ cups) Parmesan, grated
- 3 sprigs fresh thyme
Instructions
- Heat the oven to 190C/375F. Unpack the pastry sheet and line a 23 cm (9-inch) tart tin.
- Place the pastry sheet in the lined tin and fill the tart with baking beans. Blind bake for 15 minutes. Remove the beans and paper and bake for another 10 minutes.320 g shortcrust pastry
- Meanwhile, melt the butter in a frying pan over medium heat and add the sliced onions. Turn the heat to low and cook for 20-25 minutes until caramelized. Stir from time to time to make sure the onions caramelize evenly.60 g butter3 onions
- In a medium bowl, mix the eggs, double cream (heavy cream), gruyère, and chopped thyme. Season with salt and pepper.200 ml double cream (heavy cream)3 eggs100 g gruyere cheese3 sprigs fresh thyme
- Stir the onions into the egg mix and pour everything into the tart case.
- Sprinkle the parmesan on top and cook for 25 minutes or until set and golden brown.25 g Parmesan
- Allow the tart to cool for five minutes before cutting into slices.
Nutrition
Nutrition is per serving and is an estimate provided by an online nutrition calculator.
Suzanne says
It takes a bit longer than this states because it takes quite awhile to caramelize all those onions! But was absolutely delish!
Rosemary & Reflections says
Caramelized onions are my new fav ingredient. Never though of combining them in a tart! Wow this sounds really tasty. Will definitely need to buy some gruyere on my next grocery trip so I can make this. Thanks for sharing! 🙂
Alice says
I hope you like it 🙂
chefkreso says
This tart looks absolutely delicious, very French recipe 🙂
Alice says
Thank you so much, it really does have a French vibe 😊
JIN says
Oh my! This tart has heavenly cheesy creamy deliciousness all in one:_). Will definitely try this. Thanks for sharing.