Description
This Caramelized Onion, Apple & Cheddar Tart combines the sweetness of slow-cooked onions and crisp apples with sharp aged cheddar on a buttery, flaky crust. Perfect as a savory brunch dish or an elegant appetizer, it balances sweet and savory flavors with a delightful texture contrast.
Ingredients
Scale
For the Tart Dough
- 1 cup all-purpose flour
- 1/4 tsp salt
- 1/2 cup unsalted butter (chilled, cubed)
- 1/4 cup cold water
For the Filling
- 2 medium yellow onions (sliced)
- 1 tbsp unsalted butter
- 1 medium Granny Smith apple (diced)
- Salt and pepper to taste
- 1 cup shredded aged cheddar cheese
- 2 large eggs
- 1/2 cup heavy cream
Instructions
- Prepare the Dough: In a bowl, combine the all-purpose flour and salt. Cut in the chilled, cubed butter using a pastry cutter or fingers until the mixture resembles coarse crumbs. Gradually add the cold water, mixing gently until a dough forms.
- Chill the Dough: Shape the dough into a disk, wrap it tightly in plastic wrap, and refrigerate for at least 30 minutes to firm up and improve the texture.
- Caramelize Onions: In a skillet over medium heat, melt 1 tablespoon of butter. Add the sliced yellow onions and cook slowly, stirring occasionally, until they turn golden brown and caramelized, about 20 minutes.
- Add Apples: Stir the diced Granny Smith apple into the caramelized onions. Season with salt and pepper, and cook for an additional 5 minutes until the apples soften slightly but retain some texture.
- Assemble the Tart: Preheat your oven to 375°F (190°C). Roll out the chilled dough into a tart pan, pressing it evenly into the bottom and sides. Pour the onion-apple mixture over the crust evenly. Sprinkle shredded aged cheddar cheese on top.
- Mix and Add Custard: In a small bowl, whisk together the eggs and heavy cream until combined. Pour this custard mixture evenly over the filling and cheese.
- Bake: Place the tart in the preheated oven and bake for 30-35 minutes, or until the crust is golden brown and the custard is set. Remove from oven and let cool slightly before serving.
Notes
- Ensure the butter is cold when making the dough for a flaky crust.
- Caramelizing onions slowly over medium heat enhances their natural sweetness.
- Using Granny Smith apples provides a tart contrast that balances the sweetness.
- Allow the tart to cool before slicing to help the custard set properly.
- This tart can be served warm or at room temperature.
