✨ A cozy, cheesy, golden-brown appetizer perfect for fall gatherings, Friendsgiving, or holiday parties!
⭐ Why You’ll Love This Recipe
• All the flavors of classic French onion soup
• Wrapped in buttery puff pastry
• Melty cheese + caramelized onions = perfection
• Easy, impressive, and disappears fast!
📝 Ingredients
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6 tbsp salted butter
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3 yellow onions, thinly sliced
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1 cup dry white wine
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3 garlic cloves, chopped
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1 cup sliced cremini mushrooms
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2 tbsp fresh thyme leaves
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2 tbsp chopped fresh sage
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1 cup broth (chicken or veg)
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¾ cup heavy cream
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Sea salt & black pepper
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1–2 cups shredded Gruyère cheese
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1 box frozen puff pastry, thawed
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1 egg, beaten (for egg wash)
🍳 How to Make Them
1️⃣ Caramelize the Onions
Melt the butter in a large skillet over medium heat. Add the sliced onions and cook 15–20 minutes until soft, golden, and caramelized.
2️⃣ Build the Flavor
Add garlic, mushrooms, thyme, and sage. Cook 5 minutes.
Pour in white wine and simmer until reduced by half.
Stir in broth and heavy cream, then simmer until thickened.
Season with salt and pepper. Remove from heat.
3️⃣ Prep the Pastry
Roll out your puff pastry and cut into circles (or squares).
Place the pieces into a muffin tray to form little cups.
4️⃣ Fill & Top
Spoon the onion mixture into each pastry cup.
Top generously with shredded Gruyère cheese.
5️⃣ Bake to Perfection
Brush the pastry edges with egg wash.
Bake at 400°F (200°C) for 18–22 minutes
—or until golden, bubbly, and flaky.
6️⃣ Serve Warm
Garnish with fresh herbs and enjoy immediately!
💡 Tips for Best Results
✔ Use slow caramelized onions for deeper flavor
✔ Add extra cheese for a gooey pull
✔ Mix in a splash of balsamic for sweetness
✔ Great for meal prep—reheat in the oven to crisp up
✔ Serve with a glass of white wine for an elevated appetizer