"Be still our beating tarts...."
sheet frozen puff pastry, thawed in refrigerator overnight
egg, beaten with 1 tbsp. water
Extra virgin olive oil
large carrots, sliced into 1/4" thick rounds
kosher salt
vegetable broth
unsalted butter
onions, ends trimmed, peeled and thinly sliced
fresh ground black pepper
freshly grated Parmesan
fresh parsley, chopped