This cheesy onion side dish is a household favorite at Thanksgiving dinner.

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Ingredients

8
Original recipe yields 8 servings
The ingredient list now reflects the servings specified
Ingredient Checklist

Directions

Instructions Checklist
  • Preheat the oven to 350 degrees F (175 degrees C). Grease an 8 inch square baking dish.

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  • Melt the butter in a large skillet over medium heat. Add onions; cook and stir until tender, about 5 minutes. Transfer to the prepared baking dish. In a medium bowl, stir together the beef broth and flour until smooth. Mix in the cream and season with salt and pepper; pour over the onions. Sprinkle Swiss cheese and Parmesan cheese over the top.

  • Bake for 25 to 30 minutes in the preheated oven, until cheese is golden brown and the sauce is bubbly.

Nutrition Facts

228.3 calories; 8.2 g protein; 10.7 g carbohydrates; 55.2 mg cholesterol; 296.7 mg sodium. Full Nutrition

Reviews (19)

Read More Reviews

Most helpful positive review

Rating: 5 stars
12/23/2007
this is an absolute wonderful recipe. if you like onions this is the recipe to try don't change anything. Read More
(10)

Most helpful critical review

Rating: 1 stars
09/17/2008
I really wanted this recipe to be great - but it was a disaster! I should have known something would go wrong since onions give off a lot of water/juices when they cook! The end result was NOT a traditional "au gratin" dish but more of cheesy soupy onion mess. It was hardly edible and a great disappointment (not to mention waste of perfectly good onions)! My only recommendation/suggestion for fixing this would be to bake the onions first without the mixture - pour off the excess liquid - then add the flour/cream mixture and cheeses and bake again... that's the only thing that comes to mind to avoid the soup I ended up with. However with that said - I will NOT be making this again! Read More
(7)
23 Ratings
  • 5 star values: 13
  • 4 star values: 8
  • 3 star values: 1
  • 2 star values: 0
  • 1 star values: 1
Rating: 5 stars
12/22/2007
this is an absolute wonderful recipe. if you like onions this is the recipe to try don't change anything. Read More
(10)
Rating: 1 stars
09/17/2008
I really wanted this recipe to be great - but it was a disaster! I should have known something would go wrong since onions give off a lot of water/juices when they cook! The end result was NOT a traditional "au gratin" dish but more of cheesy soupy onion mess. It was hardly edible and a great disappointment (not to mention waste of perfectly good onions)! My only recommendation/suggestion for fixing this would be to bake the onions first without the mixture - pour off the excess liquid - then add the flour/cream mixture and cheeses and bake again... that's the only thing that comes to mind to avoid the soup I ended up with. However with that said - I will NOT be making this again! Read More
(7)
Rating: 5 stars
11/17/2010
This is absolutely one of my most favorite sides. I suggest if you can find them in your area using the sweets. And using Campbell's double strength beef broth really amps up the flavor you'll just have to cut out the excess salt. And a little more cheese never hurt anyone.;) Read More
(6)
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Rating: 5 stars
04/01/2008
wonderful way to use onions. i used a variety of cheeses on the top because i didn't have enough swiss (cheddar colby-jack) whole family enjoyed this as a side. Read More
(4)
Rating: 4 stars
08/18/2010
This was pretty good. The onions were surprisingly sweet. Didn't have cream so used milk instead. I'm sure the cream would have made it richer but I don't know that it needed it. Will make again. Read More
(4)
Rating: 4 stars
06/22/2011
Rich and delicious is a great way to describe this recipe. I halved this recipe and we ate it all. Thanks Clammers for sharing. Read More
(3)
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Rating: 5 stars
11/07/2011
Wonderful side dish! My dinner guest loved them and asked for the recipe. Read More
(3)
Rating: 5 stars
10/11/2010
Great side dish! I followed the recipe exactly and loved the result! I will be making this again. Read More
(2)
Rating: 5 stars
11/30/2011
So bad but sooooo good! Read More
(2)