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French Onion Soup Stuffed Mushrooms

French Onion Soup Stuffed Mushrooms on a white plate near a green napkin
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These French onion soup stuffed mushrooms are savory, cheesy, and easy to make! A fun appetizer twist on a classic comfort food favorite.

Ingredients

Scale
  • 1 lb/450g medium button or crimini mushrooms (about 12-16)
  • 2 medium/300g sweet yellow onions, sliced
  • 2 tbsp/26g unsalted butter
  • 1/2 cup/120ml broth
  • 1/2 tsp/1g garlic powder
  • 1/2 tsp/ 1/2 g dried thyme
  • 1/2 tsp/1g ground black pepper
  • 1/2 cup/60g grated Gruyere or Swiss cheese
  • Fresh parsley or thyme to garnish

Instructions

  1. Slice onions into thin quarter circles.
  2. Melt butter over medium in a large frying pan.
  3. Add the sliced onions. Cook, stirring frequently, for 7-9 minutes, until beginning to brown.
  4. Reduce heat to medium-low. Add broth, garlic powder, thyme, and ground pepper. Stir to distribute everything and scrape up the browning bits from the bottom of the pan.
  5. Cook for 12-15 minutes, stirring occasionally, until very soft, well browned, and reduced. Taste and add salt as needed (will depend on salt level of broth).
  6. While the onions are cooking, wash and dry mushrooms. Remove the stems and clean out the centers so there is a large space in each mushroom.
  7. Preheat oven to 400°F/200 C. Line a baking pan with parchment for easy clean up.
  8. Place the mushrooms hole up in the pan.
  9. Scoop a small amount of onion mixture into each mushroom, filling tightly.
  10. Sprinkle a small mound of grated cheese on each filled mushroom.
  11. Baked for 10-15 minutes until mushrooms are cooked through and cheese is melted and browned in spots.
  12. Garnish with fresh parsley or thyme. Serve hot.

Find it online: https://thevgftable.com/french-onion-soup-stuffed-mushrooms/