Gruyere, Mushroom & Caramelized Onion Bites

Steps to make Gruyere, Mushroom & Caramelized Onion Bites

1. 1

   Sauté mushrooms

   5
   

   Heat 1 tablespoon of butter and 1 tablespoon of oil in a cast iron skillet. Sauté 5-6 ounces of sliced mushrooms in the pan for about 5 minutes. Remove and set to one side.

2. 2

   Sauté onions

   5
   

   Melt the remaining 3 tablespoons of butter and the remaining tablespoon of oil in the skillet and sauté 2 thinly sliced onions in it.

4. 3

   Caramelize onions

   25
   

   Add ¼ teaspoon of dried thyme and 1 tablespoon of sugar and continue to cook for 25 minutes over medium low heat until the onions caramelize. Stir the mixture every 5 minutes to ensure it does not burn or stick.

5. 4

   Deglaze pan

   1
   

   Deglaze the pan by adding 1½ tablespoons of balsamic vinegar and allow the onions to soak it all in. Remove the pan from the heat.

6. 5

   Combine with mushrooms

   2
   

   Add the caramelized onions to the mushroom mixture and stir.

7. 6

   Season and add cheese

   5
   

   Season with ¼ teaspoon of garlic powder, salt and pepper to taste. Stir well to combine and leave to cool to room temperature.

8. 7

   Add cheese

   3
   

   Add 4 ounces of Gruyere cheese and mix well.

9. 8

   Preheat oven and prepare baking sheets

   1
   

   Preheat the oven to 400 °F. Line 2 baking sheets with parchment paper.

10. 9

    Cut pastry into squares

    5
    

    Cut the puff pastry into 2-inch squares using a knife or a pizza cutter. Place them on the lined baking sheet. Use a pastry brush to brush the squares with beaten egg.

11. 10

    Top with mushroom and onions

    5
    

    Place a tablespoon of caramelized onion and mushroom mixture in the center of each pastry square.

12. 11

    Bake

    20
    

    Bake the squares in the oven for 15-20 minutes rotating once halfway through cooking.

13. 12

    Serve
    

    Cool slightly before serving.