Name: Savory Caramelized Onion Butternut Squash Tart to Delight Your Taste Buds
Prep time: 15 min
Cook time: 30 min
Total time: 55 min
Ingredients: 1 package Puff Pastry (store-bought or homemade); 1 medium Butternut Squash (diced); 2 medium Onions (preferably yellow); 2 tablespoons Olive Oil; 1 teaspoon Salt; 1/2 teaspoon Black Pepper (adjust to taste); 1 tablespoon Fresh Thyme (or dried thyme); 4 ounces Goat Cheese (or feta); 1/2 cup Heavy Cream (or coconut cream); 1 large Egg (for egg wash); 1/4 teaspoon Red Pepper Flakes (optional)

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As the leaves start to turn and the air grows crisp, I often find myself reaching for my favorite fall ingredients, especially butternut squash. This Caramelized Onion Butternut Squash Tart is a cozy embrace on a plate, combining sweet roasted squash with rich, savory caramelized onions all tucked into a flaky puff pastry crust. What I love most about this dish is how effortlessly it comes together—perfect for busy days yet impressive enough for gatherings. It’s not just a vegetarian delight; it’s gluten-friendly and can easily be customized with creamy goat cheese or a sprinkle of feta for an added zing. Are you ready to elevate your autumn dining experience with this stunning tart? Let’s dive into this delicious recipe together!

Why is this tart a must-try?

Simplicity: The Caramelized Onion Butternut Squash Tart is easy to whip up, making it the perfect dish for both novice cooks and seasoned chefs.

Seasonal Appeal: Embrace the flavors of fall! The sweet roasted squash paired with savory caramelized onions brings a cozy warmth to your dinner table.

Flexibility: You can effortlessly make this tart your own—swapping goat cheese for feta or adding greens like spinach enhances its nutritional profile.

A Showstopper: With its golden, flaky crust and vibrant filling, this tart is not only delicious but also visually stunning, perfect for impressing guests at any gathering.

Quick Preparation: Get the oven going while your ingredients roast; the tart comes together in no time, leaving you with plenty of moments to savor with family and friends.

For more delightful inspiration, check out my delicious Rhubarb Puff Tart.

Caramelized Onion Butternut Squash Tart Ingredients

For the Crust
• Puff Pastry – This flaky, tender crust keeps your tart light; choose store-bought for convenience or make your own if time allows.

For the Filling
• Butternut Squash – Sweet and hearty, it forms the body of the tart; pumpkin can be a perfect substitute in a pinch.
• Onions – Caramelized to perfection for depth and sweetness; yellow onions are ideal, but red onions add a pop of color.
• Olive Oil – Vital for roasting and caramelizing, enhancing all flavors; melted butter works if you want a richer taste.
• Salt – Essential for bringing out the flavors of the tart.
• Black Pepper – Adds a subtle kick; adjust according to your palate.
• Fresh Thyme – Offers aromatic notes; dried thyme can be used if fresh isn’t available—just reduce the amount.
• Goat Cheese – Creamy with a tangy flavor; feta is a fantastic alternative for those who prefer a sharper taste.
• Heavy Cream – Binds everything together and adds richness; coconut cream can be used for a dairy-free option.
• Egg – An egg wash gives the pastry a beautiful golden finish.
• Red Pepper Flakes (Optional) – For a hint of heat; omit if you prefer a milder flavor.

This Caramelized Onion Butternut Squash Tart combines rich flavors that celebrate fall, making it the perfect centerpiece for your next gathering!

Step‑by‑Step Instructions for Caramelized Onion Butternut Squash Tart

Step 1: Preheat the Oven
Begin by preheating your oven to 400°F (200°C). This ensures the Caramelized Onion Butternut Squash Tart bakes evenly, developing a beautifully golden crust while the filling cooks thoroughly.

Step 2: Prepare the Butternut Squash
Peel and dice the butternut squash into small cubes. In a mixing bowl, toss the cubes with olive oil, salt, and black pepper until evenly coated. Spread the squash out on a baking sheet in a single layer, and roast in the preheated oven for 25-30 minutes, or until they’re fork-tender and caramelized at the edges.

Step 3: Caramelize the Onions
While the squash roasts, heat a tablespoon of olive oil in a skillet over medium heat. Add thinly sliced onions with a generous pinch of salt, stirring occasionally. Cook for about 20 minutes until the onions become sweet, soft, and golden brown, deepening in color and flavor.

Step 4: Roll Out the Puff Pastry
On a lightly floured surface, gently roll out the puff pastry to fit your tart pan, about 1/8-inch thick. Carefully transfer the pastry into the pan, pressing it to fit the edges. Prick the bottom with a fork to prevent puffing during baking, making it ready for the savory filling.

Step 5: Assemble the Tart
Spread the caramelized onions evenly over the puff pastry, creating a delicious base layer. Next, layer the roasted butternut squash on top, then crumble goat cheese over everything. Drizzle the heavy cream across the filling and sprinkle with fresh thyme for an aromatic finish.

Step 6: Bake the Tart
Place the assembled tart into the oven, baking at 400°F (200°C) for 25-30 minutes. You’ll know it’s done when the pastry is golden brown and the cheese is slightly melted. For extra gloss, brush the edges with a beaten egg during the last 5 minutes of baking.

Step 7: Cool and Serve
Once baked, remove the tart from the oven and let it cool for about 10 minutes. This cooling time helps meld the flavors together and makes it easier to slice. Serve warm or at room temperature, and enjoy the delicious Caramelized Onion Butternut Squash Tart!

Make Ahead Options

These Caramelized Onion Butternut Squash Tarts are perfect for busy home cooks looking to save time during hectic weeknights! You can prepare the filling—caramelized onions and roasted butternut squash—up to 3 days in advance. Simply store them in airtight containers in the refrigerator. The puff pastry can be rolled out and placed in the tart pan up to 24 hours ahead; cover with plastic wrap and refrigerate. When you’re ready to bake, layer the prepped filling onto the pastry, drizzle with cream, and sprinkle thyme before popping it in the oven. This way, your tart will still deliver all its delicious flavors with minimal effort!

Expert Tips for Caramelized Onion Butternut Squash Tart

Perfect Puff Pastry: Always prick the puff pastry well before baking to prevent unwanted bubbling, ensuring a perfectly flat crust for your tart.
Prevent Sogginess: Avoid overloading the tart with wet ingredients. A little moisture is great, but too much can lead to a soggy texture, which you definitely want to avoid!
Season to Taste: Don’t forget to sample your filling as you go! Adjust the seasoning with salt and pepper, especially after caramelizing the onions to enhance the flavor of your Caramelized Onion Butternut Squash Tart.
Cool Before Slicing: Let the tart cool for at least 10 minutes before cutting. This allows the filling to set, resulting in cleaner slices and better presentation on your dinner table.
Flavor Variations: Experiment with different herbs or cheeses! Fresh herbs like sage or tarragon can elevate your tart, while swapping goat cheese for ricotta or feta brings a unique twist to the overall flavor.

How to Store and Freeze Caramelized Onion Butternut Squash Tart

Fridge: You can store any leftover Caramelized Onion Butternut Squash Tart in the fridge for up to 3 days. Wrap it tightly in plastic wrap or place it in an airtight container to maintain freshness.

Freezer: For longer storage, freeze the tart before baking. Wrap it well in plastic wrap and aluminum foil, and it will keep for up to 2 months. Bake directly from frozen, adding a few extra minutes to the cooking time.

Reheating: To reheat, place the tart in a preheated oven at 350°F (175°C) for about 15-20 minutes, or until warmed through. This will help crisp up the pastry while keeping the filling deliciously creamy.

Room Temperature: If serving the tart at room temperature, it’s best enjoyed within 2 hours of being removed from the oven to ensure optimal flavor and texture.

Caramelized Onion Butternut Squash Tart Variations

Feel free to get creative with this tart, adding your own delicious twists to elevate each bite!

Cheese Swap: Replace goat cheese with feta for a tangy kick or ricotta for a creamier texture.
Greens Boost: Add a layer of spinach or kale before the squash for extra nutrition without overpowering the dish.
Herb Infusion: Try using fresh sage or rosemary in place of thyme for an aromatic twist that complements the squash beautifully.
Nutty Crunch: Sprinkle toasted walnuts or pecans on top before baking for a delightful crunch that enhances the tart’s flavor and texture.
Spicy Touch: Add a pinch of cayenne pepper or a few jalapeños for a surprising kick that warms you up from the inside.
Dairy-Free Delight: Substitute heavy cream with coconut cream and cheese with a nut-based option for a wholesome, dairy-free version.
Flavorful Additions: Toss in some caramelized garlic with the onions for a deeper, richer flavor that creates a delicious depth to the tart.

And if you’re feeling inspired after trying this tart, don’t forget to check out my tempting Rhubarb Puff Tart—perfect for anyone who loves a sweet twist on the classic!

What to Serve with Caramelized Onion Butternut Squash Tart

A delightful meal begins with perfect pairings that enhance flavors and create a memorable dining experience.

Mixed Green Salad: A light, refreshing salad with a tangy vinaigrette balances the richness of the tart, making every bite feel light and vibrant.
Crispy Roasted Brussels Sprouts: These earthy vegetables, seasoned and roasted to perfection, add a delightful crunch alongside the creamy tart while complementing its autumnal flavors.
Savory Quinoa Pilaf: Nutty quinoa tossed with herbs and seasonal veggies offers a hearty side, contrasting textures beautifully with the soft filling of the tart.
Herbed Yogurt Dip: A dollop of creamy herbed yogurt elevates the dish, offering a cool and tangy offset that harmonizes with the luscious filling.
Warm Apple Cider: Serving a spiced warm apple cider brings warmth and festive cheer, perfect for fall gatherings and enhancing the cozy feel of your meal.
Chocolate Mousse: End your meal on a sweet note with a light chocolate mousse; its silky texture and rich flavor serve as a luxurious contrast to the tart.

Celebrate autumn by pairing this delectable Caramelized Onion Butternut Squash Tart with these delightful accompaniments for a complete dining experience!

Caramelized Onion Butternut Squash Tart Recipe FAQs

How do I choose a ripe butternut squash?
Absolutely! When selecting butternut squash, look for one that feels heavy for its size, with a smooth, tan skin. Avoid any that show dark spots or blemishes. A ripe squash will also have a deep, even color.

How should I store leftovers from the tart?
You can store any leftover Caramelized Onion Butternut Squash Tart in the fridge for up to 3 days. Make sure to wrap it tightly in plastic wrap or place it in an airtight container to maintain its freshness and flavor.

Can I freeze the tart, and how?
Very! To freeze the Caramelized Onion Butternut Squash Tart, it’s best to do so before baking. Wrap it tightly in plastic wrap and then in aluminum foil. This way, it will keep for up to 2 months. When you’re ready to bake, just pop it in the oven from frozen, adding about 10-15 minutes to the original baking time to ensure it’s heated through perfectly.

My tart turned out soggy; what happened?
Soggy tarts can happen if too many wet ingredients are used or if the preparation steps aren’t followed carefully. To prevent this, be sure to avoid overloading with liquids, especially after adding heavy cream. Also, pre-bake the puff pastry for about 10 minutes before adding the filling, which creates a barrier and helps keep it crispy.

Are there any dietary considerations I should be aware of with this recipe?
Yes! The Caramelized Onion Butternut Squash Tart is gluten-friendly when you choose gluten-free puff pastry, making it suitable for those with gluten intolerances. If allergies are a concern, make sure the goat cheese is suitable for your dietary needs, or substitute with dairy-free cheese alternatives if needed. Always double-check ingredient labels!

What’s the best way to reheat the tart?
To reheat your Caramelized Onion Butternut Squash Tart, preheat your oven to 350°F (175°C) and place the tart inside for 15-20 minutes. This method will help crisp up the puff pastry while keeping the filling warm and creamy—just like fresh out of the oven!