Caramelized Onion Mushroom Tart
Need the perfect salty, sweet, savory appetizer for your next get together? This caramelized onion mushroom tart is perfect to impress a crowd.
Ingredients
- 1 tbsp olive oil
- 2 medium white onions thinly sliced
- ½ tbsp unsalted butter
- 8 oz baby bella mushrooms roughly chopped
- ¼ cup balsamic vinegar
- ¼ brown sugar packed
- salt and pepper to taste
- 1 sheet puff pastry defrosted
- 1 large egg
- 1 tbsp water
- 4 oz goat cheese crumbled
- 1 tbsp fresh parsley chopped
Instructions
- Place onions and oil in cast iron pan over medium-low heat. Stir occasionally for approximately 40 min or until onions are light caramel in color.
- Add butter, roughly chopped mushrooms, vinegar, and sugar to pan. Heat to a simmer and cook an additional 10-15 minutes until most of the moisture has evaporated. Season with salt and pepper to taste.
- Preheat the oven to 400°
- Cut one sheet of puff pastry dough into 9 equal squares. Using a fork, poke holes in the center of each sheet, avoiding 1/4 in border of the dough.
- Place about 1 tbsp of the onion mushroom filling in the center of each dough square, spreading close to the edges.
- Transfer the squares to a baking sheet lined with parchment and crumble a little bit of goat cheese on top of each.
- Use a fork to scramble together the egg and water. Using a pastry or basting brush, brush the 4 edges of each square with the egg wash. This will help them brown.
- Place the baking sheet in the oven to cook for 15 minutes or until the edges are golden brown.
- Sprinkle with fresh parsley and serve hot or room temperature.