Caramelized Onion Butternut Squash Tart Recipe
A flaky, golden tart layered with sweet caramelized onions, roasted butternut squash, and creamy cheese. This elegant yet simple dish is perfect for holidays, brunch, or a cozy fall dinner.
Ingredients
For the Pastry Base
- 1 sheet puff pastry thawed (or homemade pie crust)
- 1 egg beaten (for egg wash)
For the Caramelized Onions
- 2 large yellow onions thinly sliced
- 2 tablespoons olive oil
- 1 tablespoon butter
- Pinch of salt
- 1 teaspoon balsamic vinegar optional, for extra depth
For the Roasted Butternut Squash
- 2 cups butternut squash peeled and cubed
- 1 tablespoon olive oil
- Salt and black pepper to taste
For Topping
- ½ cup crumbled goat cheese or shredded Gruyère
- Fresh thyme or rosemary leaves
Instructions
- Preheat and prepare: Heat your oven to 400°F (200°C). Line a baking sheet with parchment paper.
- Roast the squash: Toss the cubed squash with olive oil, salt, and pepper. Spread evenly on the prepared sheet and roast for 20–25 minutes until tender and lightly golden. Set aside.
- Caramelize the onions: In a skillet, heat olive oil and butter over medium low heat. Add onions and a pinch of salt. Cook slowly, stirring occasionally, for 20–25 minutes until deep golden brown. If using, stir in balsamic vinegar at the end for extra sweetness.
- Prepare the pastry: Roll out the puff pastry on a lightly floured surface. Place it on a baking sheet lined with parchment paper. Score a 1 inch border around the edges without cutting all the way through. Brush the border with egg wash.
- Assemble the tart: Spread the caramelized onions evenly inside the scored border. Arrange roasted squash cubes on top. Sprinkle cheese and fresh herbs over the filling.
- Bake: Place in the oven and bake for 20–25 minutes until the pastry is golden and crisp.
- Serve: Allow to cool slightly before slicing. Serve warm or at room temperature.
Video
Notes
- Use pre cut butternut squash to save prep time.
- For extra flavor, sprinkle with a pinch of chili flakes before baking.
- This tart can be served warm or at room temperature perfect for parties.