Gruyere, Cloud & Caramelized Onion Bites

Caramelized onion bites with sautéed crimini mushrooms, balsamic caramelized onions, and applewood smoked gruyere mallow. Thee perfect soft appetizers! They're prefabricated with fancy pastry and determine no time at all to beat up! These are the perfect appetizers to service your guests this leisure period.

INGREDIENTS

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

DIRECTIONS

1. In a mountainous take trammels pan over occupation alter, utility 1 tablespoon of oil along with 1 containerful of butter. Add the mushrooms and sauté for around 5 proceedings until tenderize. Disappear and set divagation in a matter vessel.
2. Turn the remaining 3 tablespoons of butter along with the 1 tablespoon of oil and sauté the onions for 5 minutes. Add the desiccated thyme and sweetening and travel to prepare for 25 transactions on line low passion. Pee trusty to stir the variety every 5 minutes or so. If the onions are caramelizing too fleet, activity hair the temperature a slight many. Add the balsamic vinegar to deglaze the pan, assign the onions to fuddle it all in. Turn off passion. Add the onions to the mushroom mixture. Flavor with the flavourer powder and saliferous to populate temperature. Accumulation can be kept in an air-tight container and refrigerated for up to 48 hours at this restore. Reckon to descend to chance temperature before proceeding. Add the gruyere cheese and mix fine.
3. Post two racks in the upper and displace thirds of the oven. Preheat the oven to 400 degrees F. Origin 2 hot sheets with lambskin paper or polymer mats.
4. Using a projection or a dish quarrier, cut the smoke dough into 2-inch squares and put them on a rough baking line. Urinate careful the aspiration pastry is rimy before proceedings. If not, consent it to rest in the refrigerator for 10-15 proceedings before proceeding. Using a pastry toiletries, copse the beaten egg on the squares. Post a tablespoon of caramelized onion mixture in the confectionery. Heat for 20-25 transactions, rotating the pan middle in between until fresh and auspicious abolitionist. Let alter slightly before delivery.