There’s something magical about the way caramelized onions meld with the sweetness of butternut squash in a tart. Imagine a flaky pastry crust, holding golden layers of sweet, tender squash and rich, savory onions that melt in your mouth. The aroma wafts through your kitchen like a warm hug on a chilly day, promising comfort and delight.
I first discovered the joy of making this Caramelized Onion Butternut Squash Tart during a cozy fall gathering. Friends gathered around, eagerly eyeing my creation, and their smiles were worth every slice. buffalo chicken stuffed peppers Whether it’s a festive occasion or just an ordinary Tuesday, this dish brings warmth and happiness to any table.
Why You'll Love This Recipe
- This Caramelized Onion Butternut Squash Tart is deceptively easy to make while delivering incredible flavors
- The vibrant colors make it an eye-catching centerpiece for any meal
- It’s versatile enough to be served as an appetizer or main course, perfect for sharing with friends or family
- Plus, the combination of savory and sweet will have everyone asking for seconds!
I still remember my best friend’s face the first time she tasted this tart—let’s just say there might have been some very unrefined moaning involved.

Essential Ingredients
Here’s what you’ll need to make this delicious dish:
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Butternut Squash: Look for firm squash with smooth skin for the best flavor; about 1 medium squash will do.
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Onions: Yellow onions work wonderfully here; they caramelize beautifully and add sweetness.
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Puff Pastry: Use store-bought puff pastry for convenience; it’s flaky goodness without the hassle.
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Olive Oil: A good quality extra virgin olive oil enhances flavor; it’s worth splurging a little here.
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Sage: Fresh sage adds an earthy aroma; feel free to substitute with thyme if needed.
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Salt and Pepper: Essential seasonings that bring all the flavors together; adjust according to taste.
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Grated Cheese (optional): A sprinkle of goat cheese or feta elevates the tart with creamy richness; totally optional but highly recommended!
The full ingredients list, including measurements, is provided in the recipe card directly below.
Let’s Make it together
Prep Your Ingredients: Begin by preheating your oven to 400°F (200°C). Peel and cube the butternut squash into bite-sized pieces. Slice your onions thinly to ensure they caramelize evenly.
Carmelize Those Onions: In a large skillet over medium heat, add olive oil. Toss in sliced onions and cook until they soften and turn golden brown—about 15 minutes—stirring occasionally for even cooking.
Add Squash and Seasonings: Once your onions are beautifully caramelized, mix in the cubed butternut squash along with salt, pepper, and chopped sage. Cook for another 10 minutes until the squash is tender.
Prepare Puff Pastry Shell: Roll out your puff pastry on a lightly floured surface until it fits into your tart pan. Transfer it carefully into the pan and prick it with a fork to prevent bubbling during baking.
Fill and Bake!: Spoon the caramelized onion and butternut squash mixture evenly over the pastry shell. If using cheese, sprinkle it generously on top before placing it in the oven.
Bake to Perfection!: Bake in your preheated oven for 25-30 minutes or until the pastry is golden brown and crisp. Your kitchen will smell heavenly!
Enjoy serving this decadent Caramelized Onion Butternut Squash Tart at your next gathering or simply savoring it solo with Netflix on a rainy afternoon! spicy chorizo pumpkin soup. For more inspiration, check out this Creamy Pumpkin Alfredo recipe recipe.
You Must Know
- Caramelized onion butternut squash tart is a culinary delight; its sweet and savory flavors create a perfect harmony
- This dish not only impresses guests but also warms your heart on chilly evenings
- The buttery crust adds a satisfying crunch, making every bite a celebration
Perfecting the Cooking Process
Start by roasting the butternut squash while caramelizing the onions to maximize flavor and efficiency. delicious French onion pot roast Once both components are ready, assemble them on your tart base for optimal taste.

Add Your Touch
Feel free to swap butternut squash with sweet potatoes or add goat cheese for extra creaminess. sweet potato summer salad Herbs like thyme or sage can elevate the flavor profile, giving it that personal touch.
Storing & Reheating
Store leftover tart in an airtight container in the fridge for up to three days. To reheat, place it in a 350°F oven for about 10-15 minutes until warmed through and crispy.
Chef's Helpful Tips
- Caramelized onion butternut squash tart is simple yet sophisticated; use high-quality butter for a flaky crust
- Sauté onions slowly for rich flavor, and don’t rush the caramelization process—patience pays off!
- Adding nutmeg to the squash enhances its sweetness beautifully
Cooking this tart brings back memories of family gatherings where laughter mingled with delicious aromas, and everyone eagerly awaited my signature dish—it was always gone before I could take seconds!

FAQ
Can I make the tart ahead of time?
Yes, you can prepare and assemble it a day in advance and bake when needed.
What can I serve with this tart?
Pair it with a fresh salad or roasted vegetables for a complete meal. For more inspiration, check out this colorful salad recipes recipe.
How do I know when the onions are perfectly caramelized?
They should be deep golden brown and have a sweet aroma—this takes about 20-30 minutes.
Caramelized Onion Butternut Squash Tart
- Total Time: 50 minutes
- Yield: Serves 6
Description
Caramelized Onion Butternut Squash Tart is a delightful blend of sweet butternut squash and savory caramelized onions, all nestled in a flaky puff pastry crust. This elegant dish captivates with its rich flavors and vibrant colors, making it a perfect centerpiece for any gathering. Easy to prepare yet impressive, this tart is sure to become a favorite at your table.
Ingredients
- 1 medium butternut squash (about 2 cups cubed)
- 2 large yellow onions (thinly sliced)
- 1 sheet puff pastry (thawed)
- 2 tbsp olive oil
- 2 tbsp fresh sage (chopped)
- Salt and pepper to taste
- ½ cup goat cheese or feta (crumbled) – optional
Instructions
- Preheat oven to 400°F (200°C).
- Peel and cube the butternut squash. Slice the onions thinly.
- In a skillet over medium heat, add olive oil and sliced onions. Cook until golden brown, about 15 minutes.
- Add cubed butternut squash, sage, salt, and pepper; cook for an additional 10 minutes until squash is tender.
- Roll out the puff pastry on a floured surface and fit into a tart pan. Prick the base with a fork.
- Spoon the onion and squash mixture into the pastry shell; sprinkle cheese on top if desired.
- Bake for 25-30 minutes or until golden brown.
- Prep Time: 20 minutes
- Cook Time: 30 minutes
- Category: Main
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice (approximately 120g)
- Calories: 220
- Sugar: 5g
- Sodium: 250mg
- Fat: 11g
- Saturated Fat: 3g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 28g
- Fiber: 4g
- Protein: 4g
- Cholesterol: 10mg





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