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French Onion Chicken Sandwiches #SundaySupper

French Onion Chicken Sandwiches - all of the flavor of French Onion Soup, in a chicken sandwich!

Toward the end of my advertising career, I traveled for a client meeting to a nondescript nowhere city in the Midwest. I was forced to endure an awkward coworker/client dinner at a steakhouse, where I witnessed a coworker request “French Onion Soup…..but I don’t want the onions. Can you strain those out, and just give me the broth?” I’ll always remember it as the moment when I decided to quit my job and go to culinary school.

The theme of today’s #SundaySupper, hosted by Lane @ Supper for a Steal, is tailgating, and I’m bringing ALL OF THE ONIONS to this tailgate. In fact, I’m getting rid of the broth from the soup altogether, and just making a French Onion Chicken Sandwich.

French Onion Chicken Sandwiches - all of the flavor of French Onion Soup, in a chicken sandwich!

My in-laws are Michigan Football tailgating professionals, and my father-in-law always mans the grill. He doesn’t stick to just basic burgers and hot dogs – he’s also been known to grill up gyros, or throw a wok on the grill and be a one man stir fry machine. And yes, we even got him a chef’s hat:

French Onion Chicken Sandwiches - all of the flavor of French Onion Soup, in a chicken sandwich!

That “we can make anything!” tailgating spirit inspired me to create this sandwich, which in turn was inspired by the interaction that finally sent me over the edge and made me change career paths. Double inspiration!

It’s a little something different, but it’s actually no more complicated than making grilled chicken sandwiches. The onions can be caramelized up to three days in advance and just kept in the fridge until the party starts, when you can gently reheat them in either a microwave or a small pan on the grill. Grill up your chicken, then top it with Swiss cheese and the onions for hearty french onion chicken sandwiches that taste like soup!

French Onion Chicken Sandwiches - all of the flavor of French Onion Soup, in a chicken sandwich!

French Onion Chicken Sandwiches

Yield: Serves 4

French Onion Chicken Sandwiches

Ingredients

  • 1 tablespoon extra virgin olive oil
  • 1 large white onion, thinly sliced
  • 1 teaspoon granulated sugar
  • 2 boneless, skinless chicken breasts, halved crosswise and pounded to 1-inch thickness, if necessary
  • Nonstick cooking spray
  • 4 slices Swiss cheese
  • 4 hamburger buns
  • 2 cups baby spinach

Instructions

  1. In large skillet, heat oil over medium heat. Add onion and sugar; cook 25 minutes or until onions are deeply caramelized, stirring frequently. This step can be done up to 3 days in advance. Re-warm onions in microwave or in a small pan on grill before proceeding.
  2. Preheat grill for direct grilling over medium-high heat. Spray chicken with nonstick spray. Transfer chicken to hot grill rack; cover and cook 10 minutes or until chicken loses its pink color throughout and internal temperature reaches 160 degrees F, turning once.
  3. Place cheese slices on chicken pieces. Cover and cook 1 to 2 minutes or until cheese is melted and golden brown. Build sandwiches using hamburger buns, spinach, chicken and caramelized onions.

This recipe originally appeared here on the Naturebox blog.

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Don’t forget to check out all of the delicious Sunday Supper recipes:

Warm Ups (Appetizers):


Game Time (Main Dishes and Sides):


Overtime (Drinks and Desserts):

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60 Responses to “French Onion Chicken Sandwiches #SundaySupper”

  1. Marjory @ Dinner-Mom — September 8, 2013 at 8:36 am

    I would love lots of French onions on my burger, please. Very tasty!

    Reply

  2. supperforasteal — September 8, 2013 at 9:27 am

    Oh my gosh, yummy sandwiches! You have good self restraint I probably would have slapped someone who asked for FO soup w/o the onions… :)

    Reply

    • Lori | Foxes Love Lemons replied: — September 10th, 2013 @ 10:16 pm

      I was verrrrrry close to slapping her, to be honest. It was just completely ridiculous. Especially because there were plenty of other types of soup available.

  3. Jennifer Drummond — September 8, 2013 at 9:34 am

    Yum! What a yummy sandwich! Looks simply delicious!!

    Reply

  4. Nicole Humphrey Cook — September 8, 2013 at 10:38 am

    Oh. My. Goodness. Yes. Those look SO good. I wasn’t even hungry and now my mouth is watering imagining biting into one of those. Perfection!

    Reply

  5. Megan Wood — September 8, 2013 at 11:13 am

    Ohh!! This looks so yummy! I love French Onion Soup, but making it into a sandwich is brilliant.

    Reply

  6. Tammi @ Momma's Meals — September 8, 2013 at 1:58 pm

    What a fabulous idea for a sandwich! Love it…..Must.Try.This!!

    Reply

    • Lori | Foxes Love Lemons replied: — September 10th, 2013 @ 10:17 pm

      Yay! Thanks for stopping by, Tammi! And welcome back to #SS!

  7. Jen @JuanitasCocina — September 8, 2013 at 4:10 pm

    I need a hat like that!!!!

    Reply

    • Lori | Foxes Love Lemons replied: — September 10th, 2013 @ 10:17 pm

      Haha, oh you can get anything on the internet these days, Jen ;)

  8. Suzanne — September 8, 2013 at 5:11 pm

    Sounds so good, love lots of those delicious onions on the burger, well chicken breast. I love the idea of french onion soup on a bun! Your father in law is adorable in his chefs hat.

    Reply

    • Lori | Foxes Love Lemons replied: — September 10th, 2013 @ 10:18 pm

      Thanks so much, Suzanne. I don’t think anyone has ever called him adorable. That’s a first. hahahaha.

  9. Kim — September 8, 2013 at 6:51 pm

    I’m sorry, French onion soup without the onions? No thank you please. I’ll take extra onions on top of this sandwich!

    Reply

    • Lori | Foxes Love Lemons replied: — September 10th, 2013 @ 10:18 pm

      Seriously, it’s NOT french onion soup without the onions. Silly co-worker.

  10. Chef Di — September 8, 2013 at 6:59 pm

    This looks and sounds amazing! And so fun… I used to own an Ad Agency, but I worked for myself, and would have seriously fired anyone that would ask to strain the onions from French Onion Soup lol!!! Great recipe!

    Reply

    • Lori | Foxes Love Lemons replied: — September 10th, 2013 @ 10:19 pm

      Hahaha, that sounds like a reasonable excuse to fire someone to me! Ridiculous.

  11. Dorothy at ShockinglyDelicious — September 8, 2013 at 7:25 pm

    That is a supermodel sandwich!

    Reply

  12. Sarah R — September 8, 2013 at 9:31 pm

    This sounds so much better than the soup mix version I had growing up! yum…

    Reply

  13. Courtney @ Neighborfood — September 8, 2013 at 9:42 pm

    Oh my word, that story just KILLED me. I don’t know if I could’ve handled it. The other day I was at a Mexican restaurant and overheard the person beside me start her order with, “I can’t eat onions and don’t like spicy food, so…” I almost died. WHY would you choose a Mexican restaurant? Anyway, awkward menu orders aside, this looks totally drool worthy. The hubby and I would gobble this up! Melted cheeeeese!

    Reply

    • Lori | Foxes Love Lemons replied: — September 10th, 2013 @ 10:20 pm

      People are just so stupid sometimes. They seriously are. The night of the soup “incident,” there were like 4 other soups available. There’s just no reason for nonsense like that. hahahaha.

  14. Beate @ The Not So Cheesy Kitc — September 9, 2013 at 12:13 am

    Oh my, French Onion Soup without onions – wow!!!

    Yes, give me all the onions too :) Your French Onion Chicken Sandwiches looks and sound fantastic. It sounds like you got your tailgating all figured out with a perfect chef at the grill.

    Reply

  15. Susan Stone — September 9, 2013 at 10:08 am

    Yum!! What a wonderful sandwich idea!! And I love the story that sent you ‘over the edge’. It’s amazing to me how – might I say stupid? – people can be at times. When I make caramelized onions I usually add a little butter & soy sauce at the end, which is wonderful when you are not trying to recreate French onion soup. It was an idea I got from a cookbook I was browsing through at a bookstore one evening, years ago. I’m looking forward to trying this sandwich.

    Reply

    • Lori | Foxes Love Lemons replied: — September 10th, 2013 @ 10:22 pm

      Yes, STUPID is the word. People are just stupid sometimes, there’s no other way to put it! But I’m glad it happened, because now I’m here, and I’m much happier than I was in my old job.

      I love the idea of butter and soy sauce at the end. I keep learning new twists on caramelized onions! I just started adding a smidge of sugar earlier this year because I’d heard that it helps the onion caramelize better (and it does!). I’m trying the soy sauce and butter combo next time. Sounds amazing.

  16. Paula @ Vintage Kitchen — September 9, 2013 at 9:20 pm

    Oh my, these are just incredible Lori! SO ridiculously good looking. The best idea for caramelized onions, and tailgating!

    Reply

  17. littleredkitchen — September 11, 2013 at 5:22 pm

    For real? I mean seriously? How does one order French ONION soup without the onions? I don’t get people. I would have quit my job at that point too and thank goodness because you bring us yummy things like this, for all the people that love french onion soup!

    Reply

    • Lori | Foxes Love Lemons replied: — September 11th, 2013 @ 5:43 pm

      I’m so glad other people share my disgust at this event. Because, FOR REAL.

  18. Cindys Recipes — September 11, 2013 at 9:38 pm

    Nice change from beef!

    Reply

  19. Renee Dobbs — September 12, 2013 at 7:40 pm

    Laughing because I was at a restaurant yesterday and someone ordered a black and bleu burger without the bleu cheese. Like… can’t you just order a regular burger?? Crazy what people want.

    Reply

  20. Hezzi-D — September 14, 2013 at 7:26 am

    We love french onion soup and the sandwich version with chicken sounds awesome!

    Reply

  21. Constance — September 14, 2013 at 9:39 pm

    That is a beautiful sandwich! DELICIOUS!

    Reply

  22. Webicurean — September 15, 2013 at 12:47 pm

    This sandwich has my name written all over it! I love grilled onions, and the idea of making a “french onion” sandwich sounds crazy good!

    Reply

  23. Stephanie/PurdueLiz — September 23, 2013 at 7:49 pm

    Just found this on pinterest and it looks divine! Had to laugh at the co-worker story. I will say, as a kid I might’ve done that. I loved the taste but didn’t like the onions. Now, as an adult, I can’t get enough and would eat FO soup weekly if I could.

    Reply

    • Lori | Foxes Love Lemons replied: — September 23rd, 2013 @ 9:24 pm

      Oh yeah, I would totally eat it weekly, too! I love all soups, but especially FO!

  24. Susan H. — September 28, 2013 at 2:49 pm

    This looks delicious! I’ll have to try it, thanks!

    Reply

  25. elizag — October 2, 2013 at 8:33 am

    Sounds delightful. And I like your father in law. He’s cute. Go Blue!

    Reply

  26. Jesusan — October 3, 2013 at 4:28 pm

    We tried these for lunch yesterday and really enjoyed them. I’m afraid I didn’t do a good job with caramelizing the onions, so they got a little burnt and left a long-lasting bitter taste in my mouth. That was even using sweet onions which I usually do okay with. The sandwich will stay on our lunch menu rotation, and I will do a better job (I hope) of cooking the onions from here on out…

    Reply

  27. Lori | Foxes Love Lemons — October 4, 2013 at 8:52 am

    So glad you enjoyed them, Jesusan! It’s easy to burn onions, especially right at the end of their cooking time :( Sometimes, if I have the time for it, I’ll cook them over medium-low to low heat for up to an hour. It takes patience, but it’s very unlikely they’ll burn. I’ll do this the night before I want to eat them with dinner, usually. I’ll just put the onions on the stove, and then do other stuff around the house, stirring them occasionally. Then, I just refrigerate them until I’m ready to eat them!

    Reply

  28. Krista Storoy — December 29, 2013 at 11:15 am

    I think I’ll make these tonight – tho I’ll have to do the chicken in the oven because it’s a little too cold to attempt to grill today lol ;)

    Reply

  29. Danyelle — February 18, 2014 at 4:29 pm

    these were so good! Thank you – everyone from age 6 to 42 ate these too!!

    Reply

  30. Lori | Foxes Love Lemons — February 18, 2014 at 5:15 pm

    So glad to hear that, Danyelle! I love to know that my recipes are enjoyed by all ages :)

    Reply

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