• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

Closet Cooking

Cooking adventures in a small, closet sized, kitchen. - I came to realize that my meals were boring and that I had been eating the same few dishes over and over again for years. It was time for a change! I now spend my free time searching for, creating and trying tasty new recipes in my closet sized kitchen.

  • Recipes
    • Recipe Index
    • Top Recipes
    • 30 Minute Meals
    • 6 Ingredient Meals
    • Slow Cooker Meals
    • One Pan Meals
    • By Course
      • Main Course
      • Side Dish
      • Dessert
      • Appetizer/Snack
      • More
    • By Diet
      • Gluten-free
      • Low-carb
      • Vegetarian
      • More
    • By Meat
      • Beef
      • Chicken
      • Lamb
      • Egg
      • Pork
      • Seafood
      • Turkey
      • More
    • By Cuisine
      • Cajun and Creole
      • Chinese
      • Greek
      • Italian
      • Japanese
      • Korean
      • Mexican
      • Thai
      • Vietnamese
      • More
    • By Type
      • Burger
      • Cake
      • Cookie
      • Dip
      • Pasta
      • Pizza
      • Salad
      • Sandwich
      • Soup
      • More
    • By Ingredient
      • Avocado
      • Bacon
      • Cauliflower
      • Mushroom
      • Pumpkin
      • Quinoa
      • Shrimp
      • Strawberry
      • More
  • Cookbooks
  • Subscribe
  • Contact
  • Nav Social Menu

    • Facebook
    • Instagram
    • Pinterest
    • RSS
    • Twitter
Never miss a recipe! Subscribe to the email Newsletter!

Onion Gratin

[heart_this] · Dec 13, 2008 · 62 Comments

Onion Gratin

A slow roasted sweet onion gratin with a cheesy cream sauce.

Recently I have been enjoying onions a lot and when I came across this recipe for roasted parmesan onions on Proud Italian Cook I knew that I had to try them soon. I thought that pairing them with the steak in green peppercorn sauce would be a nice fit. When you bake or roast onions they get all nice and soft and tender and they release their natural sweetness and they are just plain good! Add some melted golden brown cheese on top and a creamy wine sauce and you have one amazing side dish. The roasted onion gratin was an absolute treat! The onions were nice and tender and full of that magically sweet onion flavour. I am glad that I paired the onion gratin with such a strong main course as this side dish could easily steal the show from a lesser one. I have a feeling that these onions will be making a regular appearance on my dinner table.

Onion Gratin

Onion Gratin

Prep Time: 10 minutes Cook Time: 50 minutes Total Time: 1 hour Servings: 4

A slow roasted sweet onion gratin with a cheesy cream sauce.

ingredients
  • 4 large yellow onions, peeled and sliced into 1/4 inch slices
  • olive oil
  • salt and pepper to taste
  • 1 teaspoon thyme, chopped
  • 1 cup of heavy cream
  • 1/4 cup of white wine
  • 1/4 cup of parmigiano regginao (parmesan), grated
directions
  1. Spread the onion slices out in a baking dish and drizzle them with olive oil.
  2. Season with salt and pepper and sprinkle with the thyme.
  3. Bake in a preheated 375F/190C oven for 15 minutes.
  4. Meanwhile heat the heavy cream and wine in a sauce pan until it starts to bubble on the edges.
  5. Spoon the cream over the onions.
  6. Cover in foil and bake for another 25 minutes.
  7. Remove the foil and sprinkle the cheese on top.
  8. Increase the temperature to 450F/230C and bake until golden brown, about 5 minutes.
Similar Recipes:
Asiago Roasted Onions
Potatoes au Gratin
Hot Sweet Onions Dip
Herb Roasted Onions
Onion Chutney
Rutabaga Gratin
Brussels Sprouts with Smoked Bacon, Mustard Cream and a Parmesan Crust
Fennel Gratin
Roasted Cauliflower and Aged White Cheddar Gratin
Butternut Squash and Feta Gratin
Creamy Asiago Bacon Wrapped Roasted Onions

Food, Gluten-free, Low-carb, Recipe, Side Dish, Vegetable, Vegetarian

eCookbook Bundle Cover

Get ALL 16 Closet Cooking eCookbooks in a bundle for 70% off! Enjoy some of the tastiest recipes from Closet Cooking along with exclusive cookbook recipes!

Get the Cookbook Bundle Now!

Reader Interactions

Comments

  1. Andrea says

    December 13, 2008 at 2:59 am

    I LOVE onions. I had my first stuffed onion recently and it was divine. These look just amazing and would be such a hit in this onion-loving apartment!

    Reply
  2. Amy says

    December 13, 2008 at 3:02 am

    Those onions look quite tasty! You can’t go wrong with onions and cheese.

    Reply
  3. tigerfish says

    December 13, 2008 at 3:46 am

    Must be darn sweet!

    Reply
  4. Melissa says

    December 13, 2008 at 4:20 am

    I don’t really like raw onions but I do love cooked onions. These look awesome!

    Reply
  5. Proud Italian Cook says

    December 13, 2008 at 4:23 am

    Hi Kevin, Those onions look perfect along side that glorius steak! You had some great flavors going on there! So glad you liked them. I want to make them tomarrow now after seeing this!

    Reply
  6. Marc @ NoRecipes says

    December 13, 2008 at 5:47 am

    Oooo looks so good! The best part of an onion ring is the little bit of sweet caremelized onion in the center. You’ve taken the best part and covered it in cream and cheese. Awesome!

    Reply
  7. Rosa's Yummy Yums says

    December 13, 2008 at 10:02 am

    really original! That’ a fantastic recipe!

    cheers,

    Rosa

    Reply
  8. Payton says

    December 13, 2008 at 10:20 am

    Love your recipe for onion gratin, too got my favorite recipes through Cooking.com.

    Reply
  9. KJ says

    December 13, 2008 at 10:35 am

    This sounds great. Onions are so underrated. They are delicious in their own right.

    Reply
  10. Pearlsofeast says

    December 13, 2008 at 10:52 am

    Love this dish, sounds simple bursting with amazing flavors.

    Reply
  11. Holler says

    December 13, 2008 at 1:08 pm

    That does sound quite perfect Kevin. I think this might be a good side dish for me to prepare at Christmas. I could taste the dish as you were describing it. Yum!

    Reply
  12. VeggieGirl says

    December 13, 2008 at 1:08 pm

    So elegant!

    Reply
  13. Natashya says

    December 13, 2008 at 1:32 pm

    I love the look of the onion intact like that. The recipe looks delish. I have been in an oniony mood too, must be the weather.
    Keep warm!

    Reply
  14. Maya says

    December 13, 2008 at 1:49 pm

    Gratins are one of my fave things to make in the winter. And I love onions!

    Reply
  15. meeso says

    December 13, 2008 at 1:51 pm

    Looks great!!!

    Reply
  16. HoneyB says

    December 13, 2008 at 2:14 pm

    Sounds delicious! Great side!

    Reply
  17. Cakebrain says

    December 13, 2008 at 2:18 pm

    Mmm! that looks awfully good! It appears as if the onion is going to melt under pressure from a fork!

    Reply
  18. ttfn300 says

    December 13, 2008 at 2:35 pm

    OOOH, i was excited for this recipe, they look fantastic 🙂

    Reply
  19. Dawn says

    December 13, 2008 at 3:22 pm

    I love onions this way! I saw a recipe similiar to this, but it was baked and used cheddar cheese & Ritz crackers. So good.

    Reply
  20. Mike of Mike's Table says

    December 13, 2008 at 3:32 pm

    I love potato gratins and never had an onion gratin before…and this I know I would love. It looks awesome!

    Reply
  21. Mary Ellen says

    December 13, 2008 at 3:52 pm

    Yum – this looks delicious, and beautiful!

    Reply
  22. Kalyn says

    December 13, 2008 at 4:36 pm

    I love onions and this looks delicious!

    Reply
  23. StickyGooeyCreamyChewy says

    December 13, 2008 at 4:38 pm

    They look fabulous, Kevin! I’ll bet they’re sweet and delicious!

    Reply
  24. Sharon says

    December 13, 2008 at 4:38 pm

    Wow, I’ve never really saw anything like this for onions. Neat idea!

    Thanks for, once again, sharing such a great recipe.

    Reply
  25. Hayley says

    December 13, 2008 at 4:46 pm

    Roasted onions are so good, and this golden top looks absolutely perfect!

    Reply
  26. Elra says

    December 13, 2008 at 4:47 pm

    I always discover new recipe from you. Not much of a big chunk of onion myself, but the recipe does so sound good.
    Cheers,
    Elra

    Reply
  27. Heather says

    December 13, 2008 at 5:06 pm

    wow those look amazing! i cannot wait to try them!!

    Reply
  28. cathy says

    December 13, 2008 at 5:40 pm

    those look SO good! We’ll be trying them soon!

    Reply
  29. Deborah says

    December 13, 2008 at 7:49 pm

    I’ve never seen an onion gratin like this, but I sure do want to try it!

    Reply
  30. Gloria says

    December 13, 2008 at 9:29 pm

    I love onions too and these look so tasty Kevin!! Gloria

    Reply
  31. Steph says

    December 13, 2008 at 9:32 pm

    Those onions look delicious! I never knew that something as simple as onions could be cooked that way, so fancy.. haha

    Reply
  32. Rita says

    December 13, 2008 at 9:48 pm

    Kevin, we love onions here at home, and I would love to make those. I have a few questions though: Did you keep the onions on the same baking sheet all th etime or is it necessary to transfer? Also, were they covered during the first time baking, or just at the end to prevent from burning?
    Thanks so much

    Reply
  33. Anonymous says

    December 13, 2008 at 11:08 pm

    I always love combining some kind of sweet onion with steak. I like your recipe because its a unique twist I haven’t thought about before.

    Reply
  34. Chocolate Shavings says

    December 14, 2008 at 12:44 am

    What a great side dish! I grew up hating onions, and have only started liking them a couple years ago. I know try to make them in as many different ways to showcase its different facets. This definitely makes the cut!

    Reply
  35. Anonymous says

    December 14, 2008 at 1:25 am

    Mmm, this looks incredible. I have never had onion gratin but I know I would love it. What’s not to love about sweet onions, heavy cream and cheese?!

    Reply
  36. Pam says

    December 14, 2008 at 1:50 am

    I know I say this all the time, but I am bookmarking this! I love roasted onions.

    Reply
  37. Stacey Snacks says

    December 14, 2008 at 2:49 am

    I love Marie at Proud Italian Cook, and you did her onions well!
    They look fantastic!!
    Stacey Snacks

    Reply
  38. Manggy says

    December 14, 2008 at 3:10 am

    I tried some other onion gratin recipe before and it was a dud… But this looks so delicious, and I love the presentation- so simple and elegant!

    Reply
  39. Amber says

    December 14, 2008 at 3:40 am

    Kevin, I think this is my favorite of all your postings. I make creamed onions with sherry and herbs on holidays sometimes and as you agree, the sweet flavor can’t be beat.

    Reply
  40. Helene says

    December 14, 2008 at 4:35 am

    Kevin, another great side dish. You always amaze me.

    Reply
  41. Jenny says

    December 14, 2008 at 5:39 am

    it looks amazing =) i love onions and cheese I HAVE to make this recipe!!
    hey have you checked http://www.rouxbe.com ?

    Reply
  42. Antonia says

    December 14, 2008 at 7:38 pm

    What a gorgeous-looking side dish this is. I wouldn’t have thought of an onion gratin – I HAVE to make this!

    Reply
  43. Peter M says

    December 15, 2008 at 2:15 am

    Kevin, this looks awesome…I’m going to have to try this.

    Reply
  44. Mrs Ergül says

    December 15, 2008 at 8:11 am

    Oh! I love the specks of thyme on the onions!! it looks so appetizing!

    Reply
  45. Kevin says

    December 15, 2008 at 1:53 pm

    Rita: The onions were first cooked on a baking sheet and then transferred to a baking dish when the sauce is added. When they are transferred to the baking dish they are covered in foil for the first while and then the foil is removed at the end so that the cheese can brown.

    Reply
  46. ashley says

    December 15, 2008 at 5:43 pm

    i love onions! this looks great!

    Reply
  47. Debbie says

    December 15, 2008 at 8:49 pm

    Thanks for posting this one, I love onions and usually do the same old vegie sauté. This is a great idea for a side of onions, plus with cheese..yum.

    Reply
  48. kimberleyblue says

    December 16, 2008 at 12:25 am

    Thanks for posting this – it’s a great and simple way to enjoy the deliciousness that is an onion. Sounds great, and I can’t wait to try it!

    Reply
  49. Jan says

    December 16, 2008 at 12:29 am

    I love onions, but have never thought of trying them as a side dish. That’s going to change. These look fantastic, Kevin.

    Reply
  50. Mila says

    December 17, 2008 at 8:42 pm

    Wow! These look so amazing! What a great and easy way to make these!

    Reply
  51. ~Madeline~ says

    December 17, 2008 at 9:25 pm

    Yum! I’ve never thought of an onion gratin. I don’t know why, it seems like such a natural combination. Thanks for the idea and the recipe. I’m going to make this on the weekend.

    Reply
  52. Jaime says

    December 21, 2008 at 4:01 am

    mmmm i LOVE onions. i am bookmarking this!

    Reply
  53. James says

    March 5, 2009 at 6:33 am

    Wow.. looking amazing. I love onion.
    Thanks for recipe, let me try.

    Reply
  54. molly boyer-cappawana says

    November 27, 2009 at 6:30 pm

    This was the favorite dish at Thanksgiving this year! It has already been requested for Christmas too.

    Reply
  55. Anonymous says

    January 27, 2012 at 11:59 pm

    I made these last night – AMAZING! They are one of my new favorite dishes!!

    Reply
  56. Shannon says

    November 16, 2012 at 4:57 am

    Can anything be substituted for white wine?

    Reply
  57. Kevin says

    November 18, 2012 at 4:23 pm

    Shannon: A chicken or vegetable broth could be used as a substitute for the white wine.

    Reply
  58. ... says

    May 21, 2013 at 12:51 am

    I have made this several times now, twice with Texas 1015 sweet onions and a few times with large spring onions. Every time it is a raging success – even when I double or triple the recipe, it comes out fabulous every time. Thanks so much for sharing!

    Reply
  59. Kaycee says

    October 9, 2015 at 2:01 am

    Nice Steakhouse dinner! I'm going to try the entire menu!
    Thanks!

    Reply
  60. Laura Peraino says

    May 25, 2018 at 11:22 am

    I have made this and it is delicious. When you transfer the onions and add the cream sauce, do you layer the onions, and if so how deep?

    Reply
  61. Ginni says

    November 21, 2021 at 9:14 pm

    Fifty four “reviews”. Three made the recipe and 3 more may have tried it (could not tell from their comments). Please make the dish and give us your feedback. Meanwhile, have a wonderful Thanksgiving!

    Reply

Trackbacks

  1. Thanksgiving Week: How to Feed Your Crowd For All The Other Meals - two dandelions says:
    November 13, 2018 at 9:07 am

    […] This onion gratin   makes a wonderful addition to the Thanksgiving meal rerun.  The onions become sweet and tender in the white wine sauce. […]

    Reply

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Primary Sidebar

Subscribe to the free Closet Cooking email newsletter and get a FREE copy of the eBook:
The Best of Closet Cooking!

About Me

Kevin: I came to realize that my meals were boring and that I had been eating the same few dishes over and over again for years. It was time for a change! I now spend my free time searching for, creating and trying tasty new recipes in my closet sized kitchen.
Read More

The Best of Closet Cooking 2023 – FREE eCookbook

The Best of Closet Cooking Book Cover

eCookbook Bundle

eCookbook Bundle

Top Recipes

Chicken and Avocado Burritos
Ham and Potato Corn Chowder
Mexican Street Corn Nachos
Balsamic Garlic Grilled Mushroom Skewers
Baked Firecracker Chicken
Caprese Balsamic Grilled Chicken
Balsamic Soy Roasted Garlic Mushrooms
Cheesy Beef Enchilada Tortellini Skillet
Parmesan Roasted Carrot Fries
Asiago Roasted Onions
  • Facebook
  • Instagram
  • Pinterest
  • RSS
  • Twitter
About | Contact Us | Privacy Policy | Cookie Policy
Copyright © 2007-2023, Closet Cooking Ltd. All Rights Reserved.