Cheese and Onion Tart

A Cheese and Onion Tart is one of my favourite ways to use puff pastry.
The onions - thinly sliced, sweated to transparent, before colouring slightly.
Thyme - leaves stripped from their stalks and scattered into the onion as it colours.
Cheese - French, blue, chunked and sprinkled on the pastry, before tipping on the onion.
Pastry - Place a square on a baking tray, score a boundary, tip the ingredients on and bake for 200 degrees Celsius. Add a few leaves of salad. Nice.

Cheese and onion tart