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Upside Down Onion Tarts

Flaky, cheesy, and irresistibly savory—your bakery-worthy treat made right at home.

Pastries are my ultimate weakness. Whether sweet or savory, anything wrapped in buttery layers has my full attention. While frequent bakery visits can quickly add up, puff pastry has become my go-to solution for creating indulgent treats in my own kitchen. These Upside Down Onion Tarts are a perfect example—simple to make, stunning to serve, and so delicious you’ll want to keep them in regular rotation.

  • 🧾 Ingredients
    Item Amount
    Puff pastry (thawed) 1 box (17 oz)
    Olive oil 4 tbsp
    Balsamic glaze (premade) 2 tbsp
    Sweet onions 1–2 medium, sliced into rounds
    Garlic powder 1 tsp
    Salt and pepper To taste
    Swiss cheese 12 slices
    Parmesan cheese ¼ cup, shredded
    Egg white 1
    👩‍🍳

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