Caramelized Carrot and Onion Tart Recipe - Delish.com

Ingredients

• 1 sheet frozen puff pastry, thawed in refrigerator overnight
• 1 egg, beaten with 1 tbsp. water
• Extra virgin olive oil
• 1/2 lb. large carrots, sliced into 1/4" thick rounds
• kosher salt
• 3 tbsp. vegetable broth
• 2 tbsp. unsalted butter
• 2 onions, ends trimmed, peeled and thinly sliced
• fresh ground black pepper
• 1 c. freshly grated Parmesan
• 1/4 c. fresh parsley, chopped