These mushroom cheese puffs are flaky, buttery and filled with a delicious mushroom and cheese stuffing. If you’ve ever loved bakery-style veg puffs, this easy recipe will help you recreate them at home with puff pastry.These mushroom cheese puffs are flaky, buttery and filled with a delicious mushroom and cheese stuffing. If you’ve ever loved bakery-style veg puffs, this easy recipe will help you recreate them at home with puff pastry.