There’s a restaurant here in Chicago called Osteria Via Stato, which has a signature appetizer called Parmesan Crusted Sweet Onions. This antipasti on their menu is amazingly creamy and rich… and should be enjoyed in moderation. My friend Megan loves this dish so much (as do I) that she asked the restaurant for the recipe. Much to her surprise, the restaurant gave it to her! I guess the saying is true – “Ask and you shall receive.”
We especially like this as a side dish to steaks or any roasted meat. Using sweet Vidalia onions pairs well with the saltiness of the Parmesan cheese… and who can resist the creamy white wine sauce with hints of thyme? Be as liberal as you’d like with the Parmesan cheese. The more you choose to use, the longer you may want to keep them under the broiler to get it perfectly browned and crispy.
Megan also mentioned that another version of the recipe can be found on Closet Cooking, known as Onion Gratin.
recipe adapted from Osteria Via Stato Restaurant
1-2 large candy or Vidalia sweet onions
salt, pepper and fresh or dried thyme to taste
1 pint heavy cream
1/2 cup white wine
shredded parmesan cheese
Preheat oven to 350 degrees.
Prepare your onions but peeling and cutting them in slices, being sure to keep entire rings. Place the sliced onions on a lipped baking sheet or baking dish. Brush with olive oil and sprinkle salt, pepper and dried thyme over them. Bake the onions in the preheated oven for 15 minutes.
Meanwhile, in a saucepan, combine the heavy cream and wine. Simmer until warm. Remove the onions from the oven and ladle the cream/wine mixture over them.
Sprinkle some parmesan cheese over the onions until covered. Bake the cheese topped onions in the broiler for 15-20 minutes until the cheese melts and slightly browns. If they don’t brown, you can place them in the broiler for a minute or two.
Megan also says that leaving them in the oven a little longer will result in a nicer browned crust, which is delicious!
This was originally posted back on May 25, 2009 but I’ve updated it with a new pic and some additional information.