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    Home » Latest on The Kitcheneer

    Published: May 20, 2022 · Updated: May 16, 2022

    Caramelized Onion Burger with Arugula

    Jump to Recipe·Print Recipe

    With warmer weather approaching, nothing is better than this caramelized onion burger (or French Onion Burger). This simple burger recipe is made with only 5 ingredients and topped with French style caramelized onions, peppery arugula, and steamed provolone cheese. All on a brioche or whole wheat bun. YUM

    Burger on a plate

    Summer is quickly approaching and that means cookouts, grilling, Mother's Day, Father's Day, 4th of July, any excuse to make these French Onion burgers am I right?

    This was inspired by my love of Julia Child's French Onion Soup recipe and I have coveted and have made on repeat from her cookbook for many years. There is nothing quite like the aroma of browning caramelizing smell of these onions.

    Jump to:
    • Ingredients you Need
    • Caramelized Onion Burger Instructions
    • Great Substitutions for our Caramelized Onion Burger
    • Equipment
    • Storage
    • Food For Thought
    • Looking for more grilling recipes? 🔥
    • Caramelized Onion Burger with Arugula

    Ingredients you Need

    Surprisingly not a lot! Only 5 ingredients needed to make this easy caramelized onion burger recipe!

    Caramelized onions ona burger with bun on a plate
    Steamed cheese is the ONLY way to eat a cheese burger!
    • 85% lean grassfed ground beef - is my go to for all my beef burger recipes plus there are so many benefits to choosing grassfed
    • Yellow Onions - the STAPLE onion. Meaning if a recipe doesn't specify what kind of onion to use, yellow onion is always the choice to go to. And the ONLY one that can be used "French Onion" style.
    • Arugula - This peppery flavored green is the perfect addition to this burger to add some more veggies and fiber here!
    • Provolone cheese (omit if dairy free) - Most "French onion soup" recipes call for swiss or gruyere (BOTH would be lovely here) but! I love provolone as it provides a slight sharpness and steams perfectly when you perform my secret trick to the perfect cheese burger.

    See the recipe card below for quantities.

    Caramelized Onion Burger Instructions

    Lot's more to say about this caramelized onion burger, so let's get into the process.

    Gather the ground beef, onion, and seasonings!

    Combine all spices into a large bowl and mix thoroughly into lean ground beef.

    This recipe makes about 4 equal hamburger patties.

    Form the mixture into 4 equal sized patties (roughly 3-4 oz each). Store in the fridge while you caramelize the onions. This helps the patties keep their shape while they cook!

    Caramelized Onion burgers with cheese with arugula on a plate

    Great Substitutions for our Caramelized Onion Burger

    What's great about this basic beef and onion burger is you can make it your own!

    • Lettuce Bun - Low Carb? No problem! Swap the bun for a lettuce wrap. I do this all the time (but buns do look prettier in photos 🙃). Bibb lettuce makes the best lettuce wrapped burger IMO
    • Make it Dairy Free- You can totally omit the cheese here OR swap for your favorite dairy free alternative!
    • Vegetarian - the beef hamburger can be replaced with a plant-based burger to make this vegetarian. I do this more often as I only eat meat 1-2x a week. I love making lentil or bean burgers as a swap here!
    • Gluten Free - Use a gluten free bun instead here

    This can even be made to fit Whole30 plant-based standards by following the swaps above. Omit the cheese, skip the teaspoon of coconut sugar on the onions (they will still brown), and skip the ounce of cognac.

    Even if you aren't on a specific diet, maybe someone in your friend or family circle is and I LOVE providing options to accommodate ALL.

    Equipment

    Equipment can have a big impact on how a recipe turns out. Stone bakeware takes longer to heat up than metal pans, and also retain heat for longer, which could make the recipe more watery, or burnt on the outsides. For this recipe I recommend a large deep skillet with high edges and a lid to steam that cheese! Here is the one I use!

    Or you can never go wrong with a classic cast iron pan. We also love using our heirloom pans handed down to use from Jake's grand parents.

    Storage

    Store the wet ingredients (lettuce, tomato, onion) separately from the dry ingredients (buns) in the fridge, and recombine when ready. Good for 2-3 days.

    If you do make the patties ahead of time, you can freeze them and it will last up to 2 months in the freezer.

    Food For Thought

    It pays to be patient!

    Looking for more grilling recipes? 🔥

    • The BEST Korean Bulgogi Burgers
    • The BEST Maple Bourbon Bacon Burgers
    • Summer Burger Charcuterie Board
    • Whole30 Guacamole Burgers with a Jalapeno Aioli
    • Grilled Peach Basil Turkey Burgers
    Print
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    Burger on a plate

    Caramelized Onion Burger with Arugula


    5 Stars 4 Stars 3 Stars 2 Stars 1 Star

    5 from 1 review

    • Author: Amanda
    • Total Time: 40 minutes
    • Yield: 4 1x
    Print Recipe
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    Description

    This simple burger recipe is made with only 5 ingredients and topped with French style caramelized onions, peppery arugula, and steamed provolone cheese. All on a brioche or whole wheat bun. YUM


    Ingredients

    Scale

    For the burger patties

    • 1lb 85% lean ground beef*
    • ¼ cup of diced yellow onion
    • 1 tsp salt
    • 1 tsp black pepper
    • 1 tsp garlic powder
    • 1 tsp black garlic (I had some on hand from Trader Joe's and it was YUM in these - but totally optional!)
    • Pinch of red pepper flakes
    • 1 tsp paprika
    • 1 tbs worchestershire sauce

    Caramelized Onions

    • 1 large yellow onion, thinly sliced
    • 1 tsp coconut sugar or cane sugar
    • 1 tbs of ghee or grass-fed butter

    Burger Add-Ons

    • Arugula
    • Brioche Bun or Lettuce Wrapped
    • Provolone Cheese

    Instructions

    1.  MIX IT -  In a large bowl, combine beef, onion, spices, and worchestershire sauce. 
    2. Form It- Form into 4 evenly sized patties and store in the fridge while you make the caramelized onions. 
    3. SAUTE - Heat a high rimmed skillet over medium high heat. Add ghee. Once it starts simmering, add the onion. Stir frequently to prevent burning. After the onions have softened (about 3-5 minutes), add the sugar. The sugar helps the caramelization process move faster. Keep sauteeing until all onions are a dark brown color. (about an additional 7-10 minutes). Discard to a paper towel lined plate and set aside.
    4. Cook- In the same skillet, add the burger patties. Cook about 2 minutes per side. About 1 minute before the burgers finish cooking, add the cheese (if using). 
    5. Steam the cheese - To get super yummy gooey cheese, put the lid on the skillet for 1 minute. And be prepared to be WOWED by the steamed provolone cheese 🤤
    6. ASSEMBLE - Build your perfect french onion style burger. To the bun add the burger, onions, and arugula. So simple yet so good! 

    Notes

    *Toasting the brioche buns in the oven with a little butter to get them golden brown and a little crispy on the inside is a good idea.

    * You can swap the ground beef for whatever ground meat you have. Just make sure it's cooked through all the way!

    ** For other substitutions, see full details in my post above. 

    • Prep Time: 15 minutes
    • Cook Time: 25 minutes
    • Category: Dinner
    • Method: Stove Top
    • Cuisine: American

    Did you make this recipe?

    Tag @thekitcheneer on Instagram and hashtag it #thekitcheneer

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    Reader Interactions

    Comments

    1. Fred “Not a Cook” Liggin says

      August 03, 2022 at 7:19 pm

      Boom! This recipe is delicious and super easy. The burgers drop, literally, with flavor. The sautéd onions and arugula add just the right touch. Another winner, Amanda!

      And again, if I can make this, anyone can.

      Reply
      • Amanda says

        August 08, 2022 at 12:22 pm

        Thank you Fred! I am SO happy you loved this twist on a classic burger!

        Reply

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    Hi! I'm Amanda. Nice to Meet You! TI am a full time systems engineer by day and recipe developer/food photographer by night (and weekends). My husband Jake and I live in Virginia. Favorite things are books, traveling, and coffee ☕️.

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