Best French Onion Mushrooms Recipe

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Stuffed mushrooms may not seem like the most exciting party appetizer, but cheesy French onion–stuffed mushrooms are an entirely different story.

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IngredientsSee All Nutritional Information

Directions

Step 1Preheat oven to 450°. Line a rimmed baking sheet with parchment paper.Step 2In a large skillet over medium heat, heat butter and oil. Add onions and season with salt, pepper, and thyme. Reduce heat to medium-low and cook, stirring occasionally, until onions are caramelized and jammy, about 20 minutes.Step 3Increase heat to medium-high, stir in garlic and cook, stirring, until fragrant, about 30 seconds. Stir in sherry and simmer until almost completely reduced, 2 minutes. Remove from heat.Step 4Place mushrooms stem side up on the prepared baking sheet. Roast mushrooms on top rack until softened, about 10 minutes. Remove from oven. (If any moisture gathers in mushroom caps, blot moisture with a paper towel.)Step 5Top mushrooms with onion mixture and Gruyère. Switch oven to broil and broil stuffed mushrooms until cheese is bubbly and melty, about 2 minutes.Step 6Sprinkle with parsley before serving.I made itRate itNordic Ware Nordic Ware Natural Aluminum Commercial Baker’s Half Sheet (2 Pack), SilverNordic Ware Nordic Ware Natural Aluminum Commercial Baker’s Half Sheet (2 Pack), Silver

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