Red Onion Tart Tatin with Persian Feta & Prosciutto

Method

1. Preheat the oven to 190°C.
2. Heat a heavy-based small frypan over medium heat, cut the red onions in half crossways. Add the olive oil and butter to the pan, place the onions in the pan, cut side down. Gently cook for 5 minutes. Add the vincotto, honey, thyme sprigs, and garlic, season with sea salt, and cook for 2 minutes. Remove from the stovetop and bake in the oven for a further 15 minutes.
3. Remove the pan from the oven, cut the pastry into a circle the same size as the pan (use a plate the same size as the pan as a template). Carefully lay the puff pastry sheet over the onions and tuck the edges in around the onions. Return to the oven and cook for 30 minutes or until the pastry is golden, puffed, and cooked through.
4. Remove the tart from the oven and allow to stand for 10 minutes. Invert onto a serving platter, lay the prosciutto on top, crumble over the Persian feta, and garnish with the sorrel leaves and thyme sprigs. Sprinkle with cracked black pepper.

1. Red-veined sorrel is a leafy vegetable best eaten when the leaves are small. Available at specialty grocers and markets, it has a fresh, lemony flavour. If unavailable, substitute with mixed lettuce leaves.