Preheat your oven to 200C/400F and line yourbaking sheets with baking paper.
For each tart, drizzle around 1 tbsp of oliveoil onto the parchment, followed by a drizzle of balsamic glaze, thyme, saltand pepper.
Decoratively arrange your shallot halves ontothe mixture and top with a rectangle piece of puff pastry that is big enough tocover the shallots. Brush with some egg wash and bake for 25-30 minutes or untilgolden brown.
Once baked, let cool slightly. With a benchscraper, carefully flip the tarts. Top with a sprinkle of feta cheese.