Roasted Mushroom & Gruyere Cups

A savory, bite-sized appetizer inspired by French bistro flavors. Roasted mushrooms mingle with Gruyère in crisp pastries, finished with a subtle herb note—perfect for grab-and-go cups at a mystery party. The cups stay warm and glossy, with a pleasant earthy bite and melt-in-the-mouth cheese.

  • Prep Time: 15 min
  • Cook Time: 25 min
Servings:
2 servings
(originally 6 servings)

Ingredients(scaled)

  • 1/2 cup cremini mushrooms, finely chopped
  • 1/4 cup onion, minced
  • tsp olive oil
  • 1/4 tsp dried thyme
  • 1/4 tsp salt
  • pinch black pepper
  • 1/4 cup Gruyère cheese, grated
  • sheet puff pastry, thawed
  • small egg, beaten (for egg wash)
  • tsp fresh parsley, chopped (optional for garnish)

Instructions

  1. Preheat oven to 400°F (200°C). Line a baking sheet with parchment and set aside.
  2. Toss mushrooms, onion, olive oil, thyme, salt, and pepper in a small bowl; spread on a sheet and roast 10 minutes, until browned and fragrant.
  3. Cut puff pastry into 4 squares; press each square into a mini cup/mold or small muffin tin to form cups. Brush edges with egg wash.
  4. Fill cups with roasted mushroom mixture and top with grated Gruyère.
  5. Bake 12–14 minutes until pastry is golden and cheese is bubbling. Let cool 2–3 minutes, garnish with parsley if using, then serve in cups.

Chef’s Pro Tips

  • Chill the mushroom mixture before filling to help cups hold shape.
  • Add a splash of white wine to mushrooms for depth.
  • For extra crispness, freeze filled cups briefly before final bake.

Serving Suggestions

Serve warm as a grab-and-go canapé with a light herb salad on the side or a dollop of crème fraîche for extra richness.

Storage Instructions

Store leftovers in an airtight container in the fridge for up to 1 day; reheat briefly in a 350°F oven until warm.

Nutritional Estimates
Per serving · 2 servings total
calories320
protein12
carbs22
fat20

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