Caramelized Onion, Mushroom & Gruyere Tartlets

Continuing down the road of appetizers, dips and snack food leading up to the Super Bowl, I give you this somewhat “upscale” game day food. Caramelized onions, mushrooms and Gruyere cheese are baked atop circles of puff pastry for a flaky, savory and delicious appetizer. Another occasion that this appetizer would be great for? A baby shower! Fellow food blogger Annie from Annie’s Eats is expecting her second baby in April (a girl!) and a group of bloggers organized a virtual baby shower to celebrate Annie’s bundle of joy, and of course we all brought food to the party! Since appetizers are my second love behind desserts and this is Super Bowl week, I definitely wanted to go that route, and thought that these little tartlets would be something Annie and other ladies at a shower would certainly enjoy. To see all of the great drinks, appetizers, main dishes and desserts that other bloggers contributed to the virtual shower, head on over to Annie’s and Courtney’s blogs for the roundup. For more on the tartlets, keep reading!
One of the great things about these tartlets is that you can cut the circles smaller or larger depending on how many you want to serve or how truly bite-size you want them to be. I did 3-inch circles, but you can definitely adjust depending on your needs.

These are equal parts sophisticated and easy – the best type of entertaining food in my book. You could even prepare the caramelized onions and mushrooms ahead of time and then assemble and bake right before guests arrive. Perfect for a football game or a baby shower! :)
 

Caramelized Onion, Mushroom & Gruyere Tartlets
Absolutely delicious. I made this recipe today and took it to a dinner and it was a huge hit.

prep time:10 MINS
cook time: 45 MINS
total time: 55 MINS

INGREDIENTS:

• 4 tablespoons salted butter, divided
• 5-6 ounces crimini or button mushrooms, sliced
• 2 tablespoons vegetable oil, divided
• 2 medium yellow onions, thinly sliced
• 1 1/2 tablespoon balsamic vinegar
• 1 tablespoon sugar
• 1/4 teaspoon dried thyme
• salt and pepper, to taste
• 1/4 teaspoon garlic powder
• 4 ounces grated gruyere cheese (I used applewood smoked gruyere)
• 1 egg, lightly beaten
• 1 package (1 pound) frozen puff pastry, thawed

DIRECTIONS:

1. In a large cast iron skillet over medium heat, heat 1 tablespoon of oil along with 1 tablespoon of butter. Add the mushrooms and sauté for about 5 minutes until tender. Remove and set aside in a medium bowl.
2. Heat the remaining 3 tablespoons of butter along with the 1 tablespoon of oil and sauté the onions for 5 minutes. Add the dried thyme and sugar and continue to cook for 25 minutes on medium low heat. Make sure to stir the mixture every 5 minutes or so. If the onions are caramelizing too fast, turn down the heat a little more. Add the balsamic vinegar to deglaze the pan, allow the onions to soak it all in. Turn off heat. Add the onions to the mushroom mixture. Season with the garlic powder and salt and pepper to taste, stir to combine. Allow to cool to room temperature. Mixture can be kept in an air-tight container and refrigerated for up to 48 hours at this point. Allow to come to room temperature before proceeding. Add the gruyere cheese and mix well.
3. Position two racks in the upper and lower thirds of the oven. Preheat the oven to 400 degrees F. Line 2 baking sheets with parchment paper or silicone mats.
4. Using a knife or a pizza cutter, cut the puff pastry into 2-inch squares and place them on a lined baking sheet. Make sure the puff pastry is cold before proceeding. If not, allow it to rest in the refrigerator for 10-15 minutes before proceeding. Using a pastry brush, brush the beaten egg on the squares. Place a tablespoon of caramelized onion mixture in the center. Bake for 20-25 minutes, rotating the pan halfway in between until crisp and golden brown. Let cool slightly before serving.

Caramelized Onion, Mushroom & Gruyere Tartlets #Caramelized #Onion, #Mushroom & Gruyere #Tartlets Healthy Recipes Easy, Healthy Recipes Dinner, Healthy Recipes Best, Healthy Recipes On A Budget, Healthy Recipes Clean, Healthy Recipes Breakfast, Healthy Recipes For Picky Eaters, Healthy Recipes Meal Prep, Healthy Recipes Low Carb, Healthy Recipes Vegetarian, Healthy Recipes Desserts, Healthy Recipes Snacks, Healthy Recipes Lunch, Healthy Recipes For One,