I cooked a sheet of ready-rolled puff pastry yesterday topped with pesto, veg & grated cheese.
The bottom wasn't properly cooked - the edges were crispy but the middle was rather on the soggy side underneath.
The instructions said to cook for 10-15 mins at 180 degrees. I cooked it for 15 mins, maybe 20. It was out of the fridge for perhaps an hour beforehand.
What did I do wrong?