Caramelized Tomato Tarte Tatin

1. Preparation and Pastry

Preheat your oven to 425 degrees. Unfold the all-butter puff pastry on a clean surface and trim it into a neat 10-inch round. Cover to prevent drying and keep it chilled.

2. Caramelize Onions

In a large skillet, melt unsalted butter over medium heat and stir in the sliced red onions with a pinch of granulated sugar. Cook for 15-20 minutes until caramelized, adding water to deglaze the skillet.

3. Create Caramel

Clean the skillet and combine additional granulated sugar with water to cook over medium heat. Swirl until it turns amber and carefully add sherry vinegar.

4. Assemble Tarte

Sprinkle chopped Kalamata olives over the caramel. Add cherry tomatoes and caramelized onions. Sprinkle with fresh thyme leaves, kosher salt, and freshly ground black pepper. Lay puff pastry on top, tucking in the edges and making slits for vents.

5. Bake

Bake in the preheated oven until the pastry is golden brown, about 30 minutes. Let the tarte cool for 5 minutes.

6. Invert and Serve

Place a serving platter over the skillet and invert the tarte onto it. Serve immediately.