Imagine biting into a warm, flaky tart filled with sweet caramelized onions and creamy butternut squash. The aroma wafts through your kitchen, wrapping you in a cozy embrace that even your favorite blanket would envy. Each bite is a delightful dance of flavors, combining the earthy sweetness of the squash with the rich, savory notes of perfectly caramelized onions. perfectly paired focaccia It’s the kind of dish that makes you want to throw on an apron, channel your inner chef, and host an impromptu dinner party where everyone raves about your culinary genius. For more inspiration, check out this Creamy Pumpkin Alfredo recipe.
This Caramelized Onion Butternut Squash Tart isn’t just food; it’s a celebration of fall flavors and comfort. Whether you’re impressing guests or simply indulging in some self-care after a long week, this dish has you covered. I still remember the first time I served this tart at a family gathering; it vanished faster than my cousin’s last slice of pizza! It’s perfect for Thanksgiving feasts, cozy winter nights, or whenever you need an excuse to whip up something spectacular.
Why You'll Love This Recipe
- This Caramelized Onion Butternut Squash Tart is easy to prepare and packed with flavor that will wow your taste buds
- Its golden-brown crust and vibrant filling make it visually stunning on any table
- Versatile enough for any occasion, this tart can be served as a main dish or savory appetizer
- Plus, it’s great for leftovers—if there are any!
I once served this delightful tart at a family gathering, and it disappeared before I could even grab a slice myself!

Essential Ingredients
Here’s what you’ll need to make this delicious dish:
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Butternut Squash: Choose a firm squash with no soft spots for the best texture when roasted.
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Onions: Sweet onions work wonderfully here; they caramelize beautifully and add depth to the flavor.
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Puff Pastry: Store-bought is fine—just keep it chilled until you’re ready to use it for that perfect flaky crust.
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Fresh Thyme: Fresh herbs elevate the dish’s flavor profile; sprinkle some on top before serving for added freshness.
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Olive Oil: Use high-quality extra virgin olive oil for sautéing the onions to deepen their natural sweetness.
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Salt and Pepper: Essential seasonings that enhance all the flavors; don’t be shy about using them!
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Parmesan Cheese: Grated cheese adds a nutty richness; feel free to swap it out for goat cheese if you’re feeling adventurous. comforting chili mac and cheese.
The full ingredients list, including measurements, is provided in the recipe card directly below.
Let’s Make it Together
Preheat Your Oven: Begin by preheating your oven to 400°F (200°C). This ensures even cooking and helps achieve that golden crust we all crave.
Sauté Onions Until Sweet: In a large skillet, heat olive oil over medium heat. Add sliced onions and cook until they turn translucent and release their sweet aroma—about 10 minutes.
Add Butternut Squash: Toss in diced butternut squash with salt and pepper. Cook until tender and slightly caramelized, stirring occasionally—this should take around 15-20 minutes.
Prepare Puff Pastry Shell: Roll out the puff pastry on a floured surface until it’s about 1/4 inch thick. Carefully place it into a tart pan, pressing it into the edges gently.
Combine Filling Ingredients: In a bowl, mix the sautéed vegetables with grated Parmesan cheese and fresh thyme. zucchini wraps with goat cheese This combination will create an irresistible filling.
Bake Until Golden Brown: Pour the filling into the prepared pastry shell and bake for 25-30 minutes or until the crust is golden brown and flaky—your kitchen will smell heavenly!
Now you have created an impressive Caramelized Onion Butternut Squash Tart that’s bound to steal hearts (and stomachs) at any meal! Enjoy every bite—you’ve earned it!
You Must Know
- Caramelized onion butternut squash tart is a delightful blend of flavors that will impress your guests
- The sweetness of the butternut squash and the savory depth of caramelized onions create a perfect harmony
- Don’t forget to let it cool before slicing for cleaner cuts!
Perfecting the Cooking Process
Start by roasting the butternut squash until tender, then caramelize the onions while the crust bakes. This timing ensures everything is perfectly cooked without keeping you in the kitchen all day.

Add Your Touch
Feel free to swap out thyme for sage or add goat cheese for extra creaminess. Personalizing your tart can elevate its flavor profile and make it uniquely yours.
Storing & Reheating
Store leftovers in an airtight container in the fridge for up to three days. Reheat in a 350°F oven until warmed through, ensuring that the crust stays crispy.
Chef's Helpful Tips
- To achieve perfect caramelization, cook onions slowly over low heat; patience is key
- Always use fresh herbs for brighter flavors and avoid soggy crusts by pre-baking your pastry shell
- Don’t rush the butternut squash roasting process; perfectly roasted squash makes all the difference!
Sometimes, I serve this tart at gatherings, and it disappears faster than my attempts at dieting ever could. Friends rave about it, leaving me feeling like a culinary rock star!

FAQ
Can I use frozen butternut squash?
Yes, frozen butternut squash works well if thawed and drained properly before using.
How can I make this tart vegetarian?
This recipe is already vegetarian-friendly; enjoy it as is without any meat additions!
What can I serve with this tart?
Pair it with a fresh green salad or a light soup for a complete meal. sweet potato salad with honey. For more inspiration, check out this Healthier Cobb Salad recipe.
Caramelized Onion Butternut Squash Tart
- Total Time: 50 minutes
- Yield: Serves approximately 8 slices 1x
Description
Indulge in the warmth of fall with this Caramelized Onion Butternut Squash Tart. It’s a harmonious blend of sweet butternut squash and rich caramelized onions nestled in a flaky puff pastry crust. Perfect for gatherings or cozy evenings at home, this tart is sure to impress your guests and satisfy your cravings. With its stunning presentation and delightful flavors, it’s a must-try dish that brings comfort and joy to any table.
Ingredients
- 2 cups butternut squash, diced
- 2 large sweet onions, sliced
- 1 sheet puff pastry (thawed)
- 1 tablespoon fresh thyme, chopped
- 2 tablespoons extra virgin olive oil
- Salt and pepper to taste
- ½ cup grated Parmesan cheese
Instructions
- Preheat your oven to 400°F (200°C).
- In a skillet, heat olive oil over medium heat. Add sliced onions and cook until translucent (about 10 minutes).
- Add diced butternut squash, salt, and pepper; sauté until tender and slightly caramelized (15-20 minutes).
- Roll out the puff pastry on a floured surface and place it in a tart pan.
- Combine sautéed vegetables with Parmesan cheese and thyme in a bowl.
- Pour the filling into the pastry shell and bake for 25-30 minutes or until golden brown.
- Prep Time: 20 minutes
- Cook Time: 30 minutes
- Category: Savory Tart
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice (approx. 100g)
- Calories: 240
- Sugar: 4g
- Sodium: 320mg
- Fat: 12g
- Saturated Fat: 4g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 30g
- Fiber: 3g
- Protein: 5g
- Cholesterol: 10mg




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