Gruyere, Mushroom, & Caramelized Onion Bites #appetizer #pastryrecipe

Gruyere, Mushroom, & Caramelized Onion Bites #appetizer #pastryrecipe

We should discuss the formula. I'm utilizing 2 medium yellow onions and around 5-6 ounces of crimini mushrooms. A little sugar, a little balsamic vinegar, and a 1/4 teaspoon of thyme. We're going to begin by sautéing the mushrooms in a couple of tablespoons of oil for 4-5 minutes. When they begin to dark colored, evacuate them to a bowl. Include the rest of the margarine and the onions. Let them home base in the search for gold minutes. Make sure to utilize a cast iron or hardened steel skillet. You need to abstain from utilizing a nonstick skillet as the onions won't caramelize also. After the 5 minutes, hurl in the sugar and thyme. Presently wrench the warmth down to about medium-low and cook for an aggregate of 25 minutes and continue keeping an eye on them like clockwork or so to ensure they aren't caramelizing to quick. Add the balsamic to help deglaze the dish and when it's everything been drenched up, you're finished. Add the onions to the mushrooms and season with a little garlic powder + salt and pepper.

Give your filling a chance to come to room temperature, you can store it in a sealed shut compartment for as long as 48 hours in the icebox. In the event that you choose to make the filling early, destroy it in the microwave to take it back to room temp before proceeding with the formula guidelines. Blend in the gruyere cheddar and consolidate well.

Make sure to defrost your puff baked good in the icebox medium-term. This will guarantee that you don't get any airs out attempting to pry the puff baked good sheets. Cut the puff cake sheet into little squares or square shapes. I cut mine into 2-inch squares. Brush them with a beaten egg utilizing a cake brush. Drop about a tablespoon of caramelized onion blend on each puff baked good square.

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Gruyere, Mushroom, & Caramelized Onion Bites #appetizer #pastryrecipe


  • 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


  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.

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