Caramelized Onion Tart with Thyme and Chives

Directions

1. Preheat the oven to 400°F. 
2. Lay the puff pastry out on lightly floured parchment paper. Roll the pastry sheet into a large rectangle and transfer to a baking sheet. Fold in a ½ inch border of pastry all the way around and use a fork to seal the edges closed. Dock the pastry by pricking it all over with the tines of the fork, avoiding the folded border. Bake for 15 minutes, until golden and puffy. Reduce the oven to 350°F.
3. Meanwhile, heat the olive oil in a large skillet over medium heat. Add the onions and ½ teaspoon salt, reduce heat to medium-low, and cook until softened. Add the garlic, and cook, stirring occasionally, until caramelized, about 15-20 minutes.
4. When the pastry is finished, spread the ricotta over it, avoiding the border. Sprinkle with ¼ teaspoon salt to season. Spread the caramelized onions over the ricotta in a single layer. Bake until warmed through, 5 to 7 minutes. Garnish with fresh chives.