Ingredients (10)
- 3 tablespoons unsalted butter
- 4 medium yellow onions, halved and thinly sliced
- 2 teaspoons finely chopped fresh thyme leaves
- Kosher salt
- Freshly ground black pepper
- 8 medium portobello mushrooms (about 2 1/2 pounds)
- 1/4 cup olive oil
- 4 ounces unsliced French bread
- 1/4 cup dry sherry
- 2 cups shredded Gruyère cheese (about 6 ounces)
Nutritional Information
- Calories280
- Fat18.87g
- Saturated fat7.88g
- Trans fat0.18g
- Carbs18.68g
- Fiber3.31g
- Sugar6.65g
- Protein11.62g
- Cholesterol34.84mg
- Sodium279.55mg
- Nutritional Analysis per serving (8 servings) Powered by
Get fresh food news delivered to your inbox
Sign up for our newsletter to receive the latest tips, tricks, recipes and more, sent twice a week.
This French onion soup–inspired recipe takes stuffed mushrooms from hors d’oeuvre to elegant vegetarian main course. While sliced onions caramelize on the stove, portobello mushrooms roast and bread cubes toast in the oven. Layer the onions, bread, and some Gruyère cheese in the roasted mushroom caps and broil until golden brown.
Game plan: The onions can be caramelized and cooked with the sherry up to 2 days ahead. Refrigerate in a covered container and reheat on low before stuffing the mushrooms.
Tips for Christmas
Tip
Why Do We Celebrate Christmas on Dec. 25?
There are several reasons Christmas is celebrated on Dec. 25. The date is nine months after March 25, a day recognized by Christians as Annunciation. It was the day Mary was told she would was having a baby. The nine months that follow are an approximation of Jesus’ birth. Dec. 25 also coincides with pagan Winter Solstice celebrations like Saturnalia' and Dies Natalis Solis Invicti. Since they were historically celebrated around that time of year there was precedent for holiday festivities during this time of year.
Read More
1 of 3
Next: What Does the Name 'Christmas' Mean and What Is the Meaning of Christmas?
Tip
What Does the Name 'Christmas' Mean and What Is the Meaning of Christmas?
Christmas is a shortened from the words “Christ’s mass.” It’s derived from the Middle English word "Cristemasse" which has Greek, Hebrew and Latin origins. Christmas is an annual holiday that honors the birth of Jesus Christ. It is celebrated by Christians around the world and is regarded as an important religious and cultural holiday.
Read More
2 of 3
Next: How Can We Celebrate Christmas?
Tip
How Can We Celebrate Christmas?
Christmas is traditionally celebrated in many ways and celebrations vary across cultures. In the days leading up to Christmas, people usually put up special decorations including colorful lights and evergreen trees. Gifts are often placed under the tree and exchanged on Christmas day among loved ones. Large meals are also typically served as part of the celebration as well.
Read More
3 of 3
Next: Why Do We Celebrate Christmas on Dec. 25?
Instructions
- 1Heat the oven to 400°F and arrange a rack in the top third.
- 2Melt 2 tablespoons of the butter in a large frying pan over medium heat. Add the onions and thyme, season generously with salt and pepper, and cook, stirring rarely and adjusting the heat as needed, until golden brown, about 35 minutes. Meanwhile, roast the mushrooms and toast the bread.
- 3Set a wire rack over a baking sheet. Clean the mushrooms and remove the stems (no need to scrape the gills). Brush both sides of the mushrooms with all of the oil and season generously with salt and pepper. Arrange the portobellos cap-side down on the rack.
- 4Roast the mushrooms for 8 minutes. Flip and roast until they just give way when pierced with a knife but still hold their shape, about 8 minutes more. Set the baking sheet aside to let the excess liquid drain from the mushrooms.
- 5Place the remaining tablespoon of butter in a medium microwave-safe bowl and heat until melted (alternatively, melt it in a small saucepan over low heat). Cut the bread into 1/2-inch cubes, add them to the bowl, season with salt and pepper, and toss to combine. Transfer the cubes to a second baking sheet and spread them in an even layer (reserve the bowl—no need to wash it). Bake until toasted and golden brown, stirring halfway through, about 10 minutes total.
- 6Transfer the toasted bread to the reserved bowl and set it aside (reserve the baking sheet—no need to wash it). Turn the oven to broil.
- 7When the onions are ready, add the sherry and cook, stirring occasionally, until completely evaporated, about 1 to 2 minutes. Remove from the heat, taste, and season with additional salt and pepper as needed.
- 8Place the mushrooms cap-side down on the reserved baking sheet. Divide the onions over the mushrooms. Divide the toasted bread over the onions and use your hands to gently press the bread into an even layer. Sprinkle the mushrooms evenly with the cheese.
- 9Broil until heated through and the cheese is melted and starting to brown in spots, about 2 minutes. Serve immediately.
Recommended from Chowhound
Shop
Amazon Prime Day: Our Fave Instant Pot comes with Echo Dot
by Grace Gonzalez | In case you haven’t realized by now, we are obsessed with the Instant Pot, which is why we couldn...
Shop
Amazon Prime Day 2019: The Best Kitchen & Cookware Deals So Far
by Chowhound Editors | It's officially Amazon Prime Day 2019 and you might be wondering about the best Prime Day deals on...
Shop
Never Tried Sous Vide? A Chef-Quality Sous Vide Stick Is on Prime Day Discount
by David Watsky | The sous vide method hit the mainstream a few years ago but if you haven't had a chance to try out...