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    Home » Lunch & Dinner

    Caramelized Onion & Apple Grilled Cheese Sandwich

    Published: Sep 29, 2020 » Modified: Dec 24, 2021 by Haley » This post may contain affiliate links

    Jump To Recipe Print Recipe

    This Caramelized Onion & Apple Grilled Cheese Sandwich is a delicious fall take on a classic grilled cheese recipe. With the addition of sweet caramelized onions, crisp apples, and sage butter, it is so good and sure to be a favorite easy fall recipe.

    Caramelized Onion and Apple Grilled Cheese Sandwich

    INGREDIENT NOTES:

    • Sourdough bread: I love the taste of sourdough bread and it's firmness is perfect for this grilled cheese.
    • Fresh sage: This gets chopped up and mixed with the butter then spread on the outside of the grilled cheese so it gets all toasty and smells amazing.
    • Unsalted butter: You could use salted butter, but I prefer to control the levels of salt.
    • Honeycrisp apple: This apple is the perfect amount of sweetness and is so nice and crisp. Others you could use: Gala or Fuji.
    • Yellow onions: You'll want two LARGE yellow onions for this recipe. They'll reduce in size drastically during the caramelization process.
    • Cheddar cheese: Can't go wrong with cheddar cheese. Make sure that you get it by the block and shred it yourself for ultimate melty-ness. Pre-shredded has stabilizers that often prevent it from melting easily.
    • Brie cheese: The creamiest of the creamiest. Melts so beautifully.
    • Caramelized Onion and Apple Grilled Cheese Sandwich
    • Caramelized Onion and Apple Grilled Cheese Sandwich

    KITCHEN TOOLS YOU'LL NEED:

    • Coarse grater
    • Wood spoon
    • Spatula
    • Chef's knife
    • Non-stick skillet
    • Cutting board

    HOW TO MAKE THIS GRILLED CHEESE SANDWICH:

    There are only a few steps to making this delicious Caramelized Onion & Apple Grilled Cheese Sandwich. Let's begin!

    Start with caramelizing the onions, as this will take the longest. So you'll want to cut the onions into ½ inch half moons. Heat a skillet on medium heat, melt 2tbsp butter + 1 tablespoon olive oil. Add in the onions and stir to coat. Cook them stirring every few minutes. At the 10 minute mark, add 1 teaspoon kosher salt. Continue stirring for an additional 30-40 minutes until golden brown. Add 1 tablespoon water if it looks dry as you cook. Set aside.

    While the onions are cooking, prep the other ingredients.

    • Sage butter: Combine 1 tablespoon chopped fresh sage with 4 tablespoon butter and a three-finger pinch of kosher salt.
    • Cheddar cheese: Using the coarse grater, grate the cheddar cheese.
    • Brie cheese: Cut off the rind of the cheese and slice into ½ inch thick slices.
    • Apples: Cut around the core in four slices, then thinly slice (about ¼ inch thick if you can).

    Steps to assemble:

    1. Lay down a non-buttered piece of bread.
    2. Place a flat layer of brie cheese on top, followed by ¼ of the cheddar cheese.
    3. Then add the apple slices, slightly overlapping.
    4. Followed by ¼ cup of caramelized onions.
    5. Add ¼ cup cheddar cheese on top.
    6. To finish, add the top slice of bread and spread with 1 tablespoon of the sage butter.
    7. Repeat for a second sandwich.

    In your skillet, heat 1 tablespoon olive oil on medium heat. Once sizzling carefully place the grilled cheeses in buttered side down. Spread the sides facing upward evenly with the remaining sage butter. Cook for about 6 minutes per side, until golden. Serve warm & enjoy!!

    • Caramelized Onion and Apple Grilled Cheese Sandwich
    • Caramelized Onion and Apple Grilled Cheese Sandwich
    • Caramelized Onion and Apple Grilled Cheese Sandwich
    • Caramelized Onion and Apple Grilled Cheese Sandwich

    Other fall lunch & dinner recipes:

    • Creamy Pumpkin Pasta Sauce with Sage Breadcrumbs
    • Butternut Squash & Spinach Lasagna
    • Zucchini Corn Fritters with Homemade Chipotle Mayo
    • Caramelized Onion and Apple Grilled Cheese Sandwich
    • Caramelized Onion and Apple Grilled Cheese Sandwich
    Caramelized Onion and Apple Grilled Cheese Sandwich
    Print Recipe Pin Recipe

    Caramelized Onion and Apple Grilled Cheese Sandwich

    This Caramelized Onion & Apple Grilled Cheese Sandwich is a delicious fall take on a classic grilled cheese recipe. With the addition of sweet caramelized onions, crisp apples, and sage butter, it is so good and sure to be a favorite.
    4.72 from 7 votes
    Prep time: 40 mins
    Cook time: 1 hr
    Total time: 1 hr
    Yield: 2 servings
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    INGREDIENTS 

    • 4 slices sourdough bread
    • 1 tablespoon fresh sage chopped
    • 6 tablespoon unsalted butter, divided room temp
    • 1 honeycrisp apple thinly sliced
    • 2 large yellow onions sliced ½ inch thick
    • 8 oz cheddar cheese grated
    • 2 oz brie cheese sliced into ½" slivers
    • 2 teaspoon kosher salt
    • 1 tablespoon olive oil

    INSTRUCTIONS

    • Caramelize your onions first. Heat 2 tablespoon unsalted butter in a skillet on medium heat. Add the onions, stir every few minutes. At 10 minutes, add 1 teaspoon kosher salt. Continue to cook, stirring every few minutes for an additional 30-40 minutes until golden. Add 1 tablespoon water if the skillet starts to look dry. 
    • Combine chopped sage with 4tbsp butter and 1 teaspoon kosher salt
    • To assemble, lay down a non-buttered piece of bread. Top with brie cheese, then cheddar cheese, then apples in a single layer slightly overlapping, then ¼ cup caramelized onions, then additional cheddar cheese, ending with the top piece of bread. Spread 1 tablespoon sage butter on the top piece of bread. 
    • Heat a skillet on medium heat with 1 tablespoon olive oil. Place the sandwiches in buttered side down. Spread the remaining butter evenly on the tops of the exposed bread. Cook on each side for about 6 minutes until golden. Serve warm & enjoy! 

    NUTRITION ESTIMATE PER SERVING

    Calories: 1380kcal | Carbohydrates: 97g | Protein: 51g | Fat: 89g | Saturated Fat: 52g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 27g | Trans Fat: 1g | Cholesterol: 238mg | Sodium: 3875mg | Potassium: 599mg | Fiber: 7g | Sugar: 18g | Vitamin A: 2405IU | Vitamin C: 13mg | Calcium: 988mg | Iron: 6mg
    Course: Main Course
    Cuisine: American
    Keyword: Sandwich
    Author: Haley
    DID YOU TRY THIS RECIPE?Tag @cozycravings and use #cozycravings

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    Reader Interactions

    Comments

    1. Goria B

      January 15, 2022 at 8:44 pm

      Is the 1380 Kcal for the entire recipe or for 1 serving?

      Reply
      • Haley

        January 16, 2022 at 8:35 pm

        Hi Goria - the nutrition info is per serving (which is one sandwich in this case). I updated my recipe template to reflect that!

        Reply
    2. Claire

      January 16, 2022 at 5:40 pm

      5 stars
      Wow. So good!

      Reply
      • Haley

        January 16, 2022 at 8:30 pm

        thank you!!

        Reply

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