I made these into individual tarts. The reason...the two full sheets didn't fit on my baking sheet and I wanted to make them. But they look cuter that way too. Puff pastry makes everything feel like cheating. I use it every once and a while and it always makes for a nice appetizer or side.
Caramelized Onion Tart with Fennel and Apples
2 tbsp olive oil
1 medium onion, sliced
1 fennel bulb, sliced
1 granny smith apple, sliced
salt and pepper
frozen puff pastry, thawed
thin slices of havarti
Heat oven to 400°F. Heat the oil in a large skillet over medium heat. Add the onions and fennel. Cook, stirring occasionally, until soft and golden brown, 12-15 minutes. Stir in apples, salt, and pepper and cook until just tender, 2 minutes.
Place a sheet of pastry on a lined baking sheet and prick all over with a fork. Lay on cheese slices, leaving a 1/4 inch border. Top with onion mixture and bake until the pastry is crisp and browned, 30-35 minutes. Cut into pieces before serving.
(Servings: 4-8, Prep time: 20 minutes, Cook time: 40 minutes, Difficulty: Easy)