Description
These Savory Gruyère Onion Bites are delightful puff pastry parcels filled with a flavorful mixture of caramelized onions, sautéed mushrooms, tender Granny Smith apples, and melted Gruyère cheese. Enhanced with fresh chives and thyme, these bite-sized appetizers are perfect for parties or a sophisticated snack.
Ingredients
Scale
For the Filling
- 2 tbsp vegetable oil
- 1 large onion, thinly sliced
- 4 oz baby bella mushrooms, sliced
- 2 tbsp unsalted butter
- 1 ½ Granny Smith apples, cubed
- 1 tsp granulated sugar
- 1 ½ oz grated Gruyère cheese
- 2 tbsp minced chives
- ½ tsp dried thyme
For the Pastry
- 1 lb puff pastry, thawed
- 1 egg, beaten (for egg wash)
Instructions
- Caramelize the Onions: Heat the vegetable oil in a skillet over medium-low heat. Add the thinly sliced onion and cook slowly for 20-30 minutes, stirring occasionally, until the onions are tender and golden brown. Once caramelized, remove from the heat and set aside.
- Sauté Mushrooms and Apples: Using the same skillet, melt the unsalted butter over medium heat. Add the sliced mushrooms and cook for 5-7 minutes until they are browned and most of the moisture has evaporated. Then add the cubed Granny Smith apples and granulated sugar, cooking for another 5-8 minutes until the apples are tender but still hold their shape. Remove from heat and combine with the caramelized onions in a mixing bowl.
- Assemble the Filling: To the bowl containing the onions, mushrooms, and apples, add the grated Gruyère cheese, minced chives, and dried thyme. Gently fold the ingredients until evenly combined.
- Prepare Puff Pastry: Lightly flour a work surface and unroll the thawed puff pastry. Cut it into approximately 2-inch squares or rectangles. Place about one tablespoon of the filling mixture onto the center of each pastry square, keeping a clear border around the edges.
- Shape and Bake: Bring the edges of each pastry square up and pinch them together at the center to create a neat parcel. Arrange the parcels on a baking sheet lined with parchment paper. Preheat your oven to 400°F (200°C). Brush the pastries with the beaten egg to give a golden and glossy finish. Bake for 15-20 minutes, or until the pastry has puffed beautifully and turned golden brown. Remove from oven and allow to cool slightly before serving.
Notes
- Make sure the puff pastry is fully thawed before cutting and assembling to avoid cracking.
- For a sharper cheese flavor, use older Gruyère or add a little Parmesan to the filling.
- These bites can be prepared ahead of time and baked just before serving for convenience.
- Serve warm for the best flavor and texture experience.
- If you prefer a vegetarian diet, ensure that the puff pastry is made without lard or animal fats.
