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Crispy Onion, Savory Mushroom, Juicy Apple, and Creamy Gruyere Bites Recipe

Crispy Onion, Savory Mushroom, Juicy Apple, and Creamy Gruyere Bites Recipe


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4.8 from 10 reviews

  • Total Time: 45 minutes
  • Yield: 25 1x

Description

Delicate onion, mushroom, apple, and gruyere bites showcase French-inspired appetizer elegance. Savory ingredients blend harmoniously, creating irresistible small plates perfect for entertaining guests or enjoying quiet moments with friends.


Ingredients

Scale
  • 1 pound (907g) frozen puff pastry, thawed
  • 1 large onion, thinly sliced
  • 4 oz (113g) baby bella mushrooms, sliced
  • 1.5 Granny Smith apples, cubed into ½-inch cubes
  • 1.5 oz (43g) Gruyere cheese, grated
  • 2 tbsps vegetable oil
  • 2 tbsps unsalted butter
  • 1 egg, beaten
  • 1 tsp granulated sugar
  • 0.5 tsp dried thyme
  • 2 tbsps chives, minced

Instructions

  1. Caramelization: Heat vegetable oil in a skillet and slowly transform onions to a rich, golden-brown by stirring occasionally over medium heat for approximately 30 minutes, seasoning with salt.
  2. Mushroom Preparation: Using the same skillet, sauté mushrooms until tender and moisture is released, then combine with caramelized onions in a mixing bowl.
  3. Apple Infusion: Melt butter and cook apple cubes with sugar until softened and lightly golden, then fold into the onion and mushroom mixture along with grated Gruyere, minced chives, and thyme leaves.
  4. Flavor Enhancement: Season the combined mixture with salt and freshly ground black pepper to elevate the taste profile.
  5. Pastry Arrangement: Preheat oven to 400°F (204°C), thaw puff pastry, and slice into precise 2-inch squares using a sharp knife or pastry cutter.
  6. Baking Preparation: Line baking sheets with silicone mats, arrange pastry squares evenly, and brush with beaten egg for a glossy finish.
  7. Filling and Baking: Place one tablespoon of prepared filling in the center of each pastry square, then bake for 25 minutes, rotating pans midway to ensure uniform browning and crispness.
  8. Serving: Remove from oven and allow bites to cool slightly for easier handling and optimal texture before serving.

Notes

  • Slow Caramelize Onions: Take time to develop deep, rich flavor; low and slow cooking is key to achieving golden-brown sweetness without burning.
  • Manage Moisture Carefully: Sauté mushrooms thoroughly to prevent excess liquid from making pastry soggy; ensure ingredients are well-drained.
  • Choose High-Quality Cheese: Use freshly grated Gruyere for maximum flavor and smooth melting; pre-shredded cheese won’t deliver the same rich taste.
  • Perfect Pastry Technique: Brush egg wash lightly and evenly for a professional golden-brown finish; avoid heavy application that can weigh down delicate pastry.
  • Prep Time: 20 minutes
  • Cook Time: 25 minutes
  • Category: Appetizer, Snacks
  • Method: Baking
  • Cuisine: French

Nutrition

  • Serving Size: 25
  • Calories: 150
  • Sugar: 2g
  • Sodium: 200mg
  • Fat: 9g
  • Saturated Fat: 4g
  • Unsaturated Fat: 5g
  • Trans Fat: 0g
  • Carbohydrates: 15g
  • Fiber: 1g
  • Protein: 3g
  • Cholesterol: 20mg