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Ingredients

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Directions

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  • Heat butter over medium-high heat. Add Vidalia onion. Cook 20 minutes, stirring until browned. Add thyme leaves and salt.

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  • Unfold puff pastry sheet onto greased nonstick baking sheet and prick with a fork. Bake at 400 degrees F for 10 minutes.

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  • Spread onions over pastry, then top with Gruyere cheese. Bake at 400 degrees F for an additional 10 minutes. Cut into squares and serve.

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